Atkin-Lehner |
2+ 3+ 5+ 43- |
Signs for the Atkin-Lehner involutions |
Class |
20640a |
Isogeny class |
Conductor |
20640 |
Conductor |
∏ cp |
16 |
Product of Tamagawa factors cp |
deg |
10240 |
Modular degree for the optimal curve |
Δ |
5990760000 = 26 · 34 · 54 · 432 |
Discriminant |
Eigenvalues |
2+ 3+ 5+ 0 4 -2 2 -4 |
Hecke eigenvalues for primes up to 20 |
Equation |
[0,-1,0,-466,-920] |
[a1,a2,a3,a4,a6] |
j |
175239948736/93605625 |
j-invariant |
L |
1.0922844050688 |
L(r)(E,1)/r! |
Ω |
1.0922844050688 |
Real period |
R |
1 |
Regulator |
r |
0 |
Rank of the group of rational points |
S |
1 |
(Analytic) order of Ш |
t |
4 |
Number of elements in the torsion subgroup |
Twists |
20640t1 41280bj2 61920ca1 103200ch1 |
Quadratic twists by: -4 8 -3 5 |