87680710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21757}}^1$

素因数の和:21808

約数の個数: 32

約数和(自身を含む): 175456512

約数和(自身を除く): 87775802

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 21757, 43514, 108785, 217570, 282841, 565682, 674467, 1348934, 1414205, 2828410, 3372335, 6744670, 8768071, 17536142, 43840355, 87680710]

約数ペア:

[(1, 87680710), (2, 43840355), (5, 17536142), (10, 8768071), (13, 6744670), (26, 3372335), (31, 2828410), (62, 1414205), (65, 1348934), (130, 674467), (155, 565682), (310, 282841), (403, 217570), (806, 108785), (2015, 43514), (4030, 21757)]