387877360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4721}}^1$

素因数の和:4826

約数の個数: 80

約数和(自身を含む): 983687040

約数和(自身を除く): 595809680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 316, 395, 520, 632, 790, 1027, 1040, 1264, 1580, 2054, 3160, 4108, 4721, 5135, 6320, 8216, 9442, 10270, 16432, 18884, 20540, 23605, 37768, 41080, 47210, 61373, 75536, 82160, 94420, 122746, 188840, 245492, 306865, 372959, 377680, 490984, 613730, 745918, 981968, 1227460, 1491836, 1864795, 2454920, 2983672, 3729590, 4848467, 4909840, 5967344, 7459180, 9696934, 14918360, 19393868, 24242335, 29836720, 38787736, 48484670, 77575472, 96969340, 193938680, 387877360]

約数ペア:

[(1, 387877360), (2, 193938680), (4, 96969340), (5, 77575472), (8, 48484670), (10, 38787736), (13, 29836720), (16, 24242335), (20, 19393868), (26, 14918360), (40, 9696934), (52, 7459180), (65, 5967344), (79, 4909840), (80, 4848467), (104, 3729590), (130, 2983672), (158, 2454920), (208, 1864795), (260, 1491836), (316, 1227460), (395, 981968), (520, 745918), (632, 613730), (790, 490984), (1027, 377680), (1040, 372959), (1264, 306865), (1580, 245492), (2054, 188840), (3160, 122746), (4108, 94420), (4721, 82160), (5135, 75536), (6320, 61373), (8216, 47210), (9442, 41080), (10270, 37768), (16432, 23605), (18884, 20540)]