257838204

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{23279}}^1$

素因数の和:23370

約数の個数: 48

約数和(自身を含む): 657054720

約数和(自身を除く): 399216516

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 142, 156, 213, 284, 426, 852, 923, 1846, 2769, 3692, 5538, 11076, 23279, 46558, 69837, 93116, 139674, 279348, 302627, 605254, 907881, 1210508, 1652809, 1815762, 3305618, 3631524, 4958427, 6611236, 9916854, 19833708, 21486517, 42973034, 64459551, 85946068, 128919102, 257838204]

約数ペア:

[(1, 257838204), (2, 128919102), (3, 85946068), (4, 64459551), (6, 42973034), (12, 21486517), (13, 19833708), (26, 9916854), (39, 6611236), (52, 4958427), (71, 3631524), (78, 3305618), (142, 1815762), (156, 1652809), (213, 1210508), (284, 907881), (426, 605254), (852, 302627), (923, 279348), (1846, 139674), (2769, 93116), (3692, 69837), (5538, 46558), (11076, 23279)]