7257640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{821}}^1$

素因数の和:862

約数の個数: 64

約数和(自身を含む): 18642960

約数和(自身を除く): 11385320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 821, 884, 1105, 1642, 1768, 2210, 3284, 4105, 4420, 6568, 8210, 8840, 10673, 13957, 16420, 21346, 27914, 32840, 42692, 53365, 55828, 69785, 85384, 106730, 111656, 139570, 181441, 213460, 279140, 362882, 426920, 558280, 725764, 907205, 1451528, 1814410, 3628820, 7257640]

約数ペア:

[(1, 7257640), (2, 3628820), (4, 1814410), (5, 1451528), (8, 907205), (10, 725764), (13, 558280), (17, 426920), (20, 362882), (26, 279140), (34, 213460), (40, 181441), (52, 139570), (65, 111656), (68, 106730), (85, 85384), (104, 69785), (130, 55828), (136, 53365), (170, 42692), (221, 32840), (260, 27914), (340, 21346), (442, 16420), (520, 13957), (680, 10673), (821, 8840), (884, 8210), (1105, 6568), (1642, 4420), (1768, 4105), (2210, 3284)]