Cremona's table of elliptic curves

32240 = 2⁴ · 5 · 13 · 31

Class	r	Atkin-Lehner	Eigenvalues
32240a (1 curve)	1	2+ 5+ 13+ 31+	2+ -1 5+ -4  0 13+ -3 -5
Curve Equation t Generators 32240a1 [0,-1,0,239,701] 1 [28:169:1]
32240b (1 curve)	1	2+ 5+ 13+ 31+	2+  2 5+ -4 -3 13+  0 -2
Curve Equation t Generators 32240b1 [0,-1,0,-415041,-102778195] 1 [247071513197659061116:-10482271905141559659375:121690642216006592]
32240c (1 curve)	2	2+ 5+ 13+ 31-	2+ -1 5+  2 -4 13+ -3  1
Curve Equation t Generators 32240c1 [0,-1,0,-1,125] 1 [-4:7:1]&[4:13:1]
32240d (1 curve)	0	2+ 5+ 13+ 31-	2+ -1 5+ -2  0 13+  5  5
Curve Equation t 32240d1 [0,-1,0,-30961,-2086579] 1
32240e (4 curves)	1	2+ 5- 13+ 31-	2+  0 5-  0  0 13+  2  4
Curve Equation t Generators 32240e1 [0,0,0,913,33166] 2 [57:520:1] 32240e2 [0,0,0,-11587,435666] 4 [-78:930:1] 32240e3 [0,0,0,-42587,-2906134] 2 [-118:690:1] 32240e4 [0,0,0,-180587,29537466] 4 [1986:615:8]
32240f (1 curve)	1	2+ 5- 13+ 31-	2+ -1 5-  2  2 13+ -3 -5
Curve Equation t Generators 32240f1 [0,-1,0,6243015,-577597883] 1 [57828:4060225:27]
32240g (1 curve)	1	2+ 5- 13+ 31-	2+ -1 5-  2 -6 13+  5 -5
Curve Equation t Generators 32240g1 [0,-1,0,-1225,16997] 1 [-28:169:1]
32240h (1 curve)	1	2+ 5- 13- 31+	2+  3 5-  0 -2 13- -3 -7
Curve Equation t Generators 32240h1 [0,0,0,-5530612,-13601513716] 1 [130971:7330375:27]
32240i (1 curve)	2	2- 5+ 13+ 31+	2- -2 5+  0 -3 13+ -4  6
Curve Equation t Generators 32240i1 [0,1,0,-21,79] 1 [-6:5:1]&[-1:10:1]
32240j (2 curves)	1	2- 5+ 13- 31+	2- -1 5+ -2  0 13-  3  7
Curve Equation t Generators 32240j1 [0,-1,0,-501,-15875] 1 [36:107:1] 32240j2 [0,-1,0,4459,403741] 1 [-52:169:1]
32240k (2 curves)	1	2- 5+ 13- 31+	2-  2 5+  4 -3 13-  0 -2
Curve Equation t Generators 32240k1 [0,-1,0,619,7325] 1 [794:8145:8] 32240k2 [0,-1,0,-19221,1037021] 1 [298:4875:8]
32240l (1 curve)	1	2- 5- 13+ 31+	2-  1 5-  4  2 13+ -5  5
Curve Equation t Generators 32240l1 [0,1,0,-125,-15625] 1 [50:325:1]
32240m (1 curve)	0	2- 5- 13+ 31-	2-  3 5-  4  6 13+ -1 -1
Curve Equation t 32240m1 [0,0,0,-2032,-35344] 1
32240n (2 curves)	0	2- 5- 13- 31+	2-  0 5-  0  2 13-  4 -4
Curve Equation t 32240n1 [0,0,0,-1667,145026] 2 32240n2 [0,0,0,-52867,4660866] 2

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