291238280

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1\times {\mathrm{401}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 669185280

約数和(自身を除く): 377947000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 271, 335, 401, 536, 542, 670, 802, 1084, 1340, 1355, 1604, 2005, 2168, 2680, 2710, 3208, 4010, 5420, 8020, 10840, 16040, 18157, 26867, 36314, 53734, 72628, 90785, 107468, 108671, 134335, 145256, 181570, 214936, 217342, 268670, 363140, 434684, 537340, 543355, 726280, 869368, 1074680, 1086710, 2173420, 4346840, 7280957, 14561914, 29123828, 36404785, 58247656, 72809570, 145619140, 291238280]

約数ペア:

[(1, 291238280), (2, 145619140), (4, 72809570), (5, 58247656), (8, 36404785), (10, 29123828), (20, 14561914), (40, 7280957), (67, 4346840), (134, 2173420), (268, 1086710), (271, 1074680), (335, 869368), (401, 726280), (536, 543355), (542, 537340), (670, 434684), (802, 363140), (1084, 268670), (1340, 217342), (1355, 214936), (1604, 181570), (2005, 145256), (2168, 134335), (2680, 108671), (2710, 107468), (3208, 90785), (4010, 72628), (5420, 53734), (8020, 36314), (10840, 26867), (16040, 18157)]