319120568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{4787}}^1$

素因数の和:5447

約数の個数: 32

約数和(自身を含む): 645518160

約数和(自身を除く): 326397592

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 641, 1282, 2564, 4787, 5128, 8333, 9574, 16666, 19148, 33332, 38296, 62231, 66664, 124462, 248924, 497848, 3068467, 6136934, 12273868, 24547736, 39890071, 79780142, 159560284, 319120568]

約数ペア:

[(1, 319120568), (2, 159560284), (4, 79780142), (8, 39890071), (13, 24547736), (26, 12273868), (52, 6136934), (104, 3068467), (641, 497848), (1282, 248924), (2564, 124462), (4787, 66664), (5128, 62231), (8333, 38296), (9574, 33332), (16666, 19148)]