Cremona's table of elliptic curves

2480 = 2⁴ · 5 · 31

Class	r	Atkin-Lehner	Eigenvalues
2480a (2 curves)	1	2+ 5+ 31+	2+  0 5+  0 -2  2  0  8
Curve Equation t Generators 2480a1 [0,0,0,-323,-2478] 2 [29:112:1] 2480a2 [0,0,0,-5323,-149478] 2 [154:1638:1]
2480b (1 curve)	1	2+ 5+ 31+	2+  1 5+  0  0 -2  3 -1
Curve Equation t Generators 2480b1 [0,1,0,-7201,234715] 1 [54:79:1]
2480c (2 curves)	1	2+ 5+ 31+	2+ -2 5+  0  0  4  0 -4
Curve Equation t Generators 2480c1 [0,1,0,4,-20] 2 [6:16:1] 2480c2 [0,1,0,-96,-380] 2 [-6:4:1]
2480d (2 curves)	0	2+ 5+ 31-	2+ -2 5+  4 -4  4  4 -4
Curve Equation t 2480d1 [0,1,0,-31,0] 2 2480d2 [0,1,0,124,124] 2
2480e (4 curves)	0	2+ 5- 31+	2+  0 5-  0  4  2  6 -4
Curve Equation t 2480e1 [0,0,0,-362,1659] 2 2480e2 [0,0,0,-5167,142926] 4 2480e3 [0,0,0,-82667,9148426] 2 2480e4 [0,0,0,-4547,178514] 4
2480f (1 curve)	1	2+ 5- 31-	2+  1 5- -2  2 -2 -5 -1
Curve Equation t Generators 2480f1 [0,1,0,-25,-77] 1 [6:5:1]
2480g (1 curve)	1	2+ 5- 31-	2+ -3 5- -2  2 -2 -1 -1
Curve Equation t Generators 2480g1 [0,0,0,-38452,2902204] 1 [153:-775:1]
2480h (2 curves)	0	2- 5+ 31+	2- -1 5+  4  0  2 -3  7
Curve Equation t 2480h1 [0,-1,0,-101,-359] 1 2480h2 [0,-1,0,59,-1495] 1
2480i (4 curves)	0	2- 5+ 31+	2-  2 5+  4  0 -4  0  4
Curve Equation t 2480i1 [0,-1,0,-1696,-26880] 2 2480i2 [0,-1,0,-27296,-1726720] 2 2480i3 [0,-1,0,7264,-120064] 2 2480i4 [0,-1,0,-32736,-984064] 2
2480j (2 curves)	2	2- 5+ 31+	2- -2 5+ -4 -4  0 -8 -4
Curve Equation t Generators 2480j1 [0,1,0,-16,84] 2 [-4:10:1]&[-1:10:1] 2480j2 [0,1,0,-416,3124] 2 [-20:62:1]&[-14:80:1]
2480k (1 curve)	1	2- 5+ 31-	2-  1 5+  0  4 -6  5  1
Curve Equation t Generators 2480k1 [0,1,0,-21,-61] 1 [22:103:1]
2480l (2 curves)	1	2- 5+ 31-	2- -2 5+  0 -2  0  2  4
Curve Equation t Generators 2480l1 [0,1,0,-1056,13300] 2 [12:50:1] 2480l2 [0,1,0,-17056,851700] 2 [106:-496:1]
2480m (2 curves)	1	2- 5- 31+	2-  1 5-  2 -2 -6 -7  5
Curve Equation t Generators 2480m1 [0,1,0,155,-557] 1 [6:25:1] 2480m2 [0,1,0,-13445,596723] 1 [38:377:1]
2480n (2 curves)	0	2- 5- 31-	2-  0 5-  2  4 -4  0  0
Curve Equation t 2480n1 [0,0,0,-1052,-13129] 2 2480n2 [0,0,0,-1207,-9006] 2
2480o (1 curve)	0	2- 5- 31-	2-  3 5-  2 -2  2 -3  3
Curve Equation t 2480o1 [0,0,0,8,-4] 1

Data from Elliptic Curve Data by J. E. Cremona.
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