87031360

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20921}}^1$

素因数の和:20951

約数の個数: 56

約数和(自身を含む): 223195896

約数和(自身を除く): 136164536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 20921, 41842, 83684, 104605, 167368, 209210, 271973, 334736, 418420, 543946, 669472, 836840, 1087892, 1338944, 1359865, 1673680, 2175784, 2719730, 3347360, 4351568, 5439460, 6694720, 8703136, 10878920, 17406272, 21757840, 43515680, 87031360]

約数ペア:

[(1, 87031360), (2, 43515680), (4, 21757840), (5, 17406272), (8, 10878920), (10, 8703136), (13, 6694720), (16, 5439460), (20, 4351568), (26, 3347360), (32, 2719730), (40, 2175784), (52, 1673680), (64, 1359865), (65, 1338944), (80, 1087892), (104, 836840), (130, 669472), (160, 543946), (208, 418420), (260, 334736), (320, 271973), (416, 209210), (520, 167368), (832, 104605), (1040, 83684), (2080, 41842), (4160, 20921)]