Atkin-Lehner |
2- 3+ 5+ 43+ |
Signs for the Atkin-Lehner involutions |
Class |
20640m |
Isogeny class |
Conductor |
20640 |
Conductor |
∏ cp |
4 |
Product of Tamagawa factors cp |
deg |
2560 |
Modular degree for the optimal curve |
Δ |
206400 = 26 · 3 · 52 · 43 |
Discriminant |
Eigenvalues |
2- 3+ 5+ -2 2 6 0 -2 |
Hecke eigenvalues for primes up to 20 |
Equation |
[0,-1,0,-46,-104] |
[a1,a2,a3,a4,a6] |
j |
171879616/3225 |
j-invariant |
L |
1.8319811667256 |
L(r)(E,1)/r! |
Ω |
1.8319811667256 |
Real period |
R |
1 |
Regulator |
r |
0 |
Rank of the group of rational points |
S |
1 |
(Analytic) order of Ш |
t |
2 |
Number of elements in the torsion subgroup |
Twists |
20640w1 41280dr1 61920t1 103200z1 |
Quadratic twists by: -4 8 -3 5 |