348125440

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20921}}^1$

素因数の和:20955

約数の個数: 72

約数和(自身を含む): 898055928

約数和(自身を除く): 549930488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 20921, 41842, 83684, 104605, 167368, 209210, 271973, 334736, 418420, 543946, 669472, 836840, 1087892, 1338944, 1359865, 1673680, 2175784, 2677888, 2719730, 3347360, 4351568, 5355776, 5439460, 6694720, 8703136, 10878920, 13389440, 17406272, 21757840, 26778880, 34812544, 43515680, 69625088, 87031360, 174062720, 348125440]

約数ペア:

[(1, 348125440), (2, 174062720), (4, 87031360), (5, 69625088), (8, 43515680), (10, 34812544), (13, 26778880), (16, 21757840), (20, 17406272), (26, 13389440), (32, 10878920), (40, 8703136), (52, 6694720), (64, 5439460), (65, 5355776), (80, 4351568), (104, 3347360), (128, 2719730), (130, 2677888), (160, 2175784), (208, 1673680), (256, 1359865), (260, 1338944), (320, 1087892), (416, 836840), (520, 669472), (640, 543946), (832, 418420), (1040, 334736), (1280, 271973), (1664, 209210), (2080, 167368), (3328, 104605), (4160, 83684), (8320, 41842), (16640, 20921)]