64904080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26171}}^1$

素因数の和:26215

約数の個数: 40

約数和(自身を含む): 155775744

約数和(自身を除く): 90871664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26171, 52342, 104684, 130855, 209368, 261710, 418736, 523420, 811301, 1046840, 1622602, 2093680, 3245204, 4056505, 6490408, 8113010, 12980816, 16226020, 32452040, 64904080]

約数ペア:

[(1, 64904080), (2, 32452040), (4, 16226020), (5, 12980816), (8, 8113010), (10, 6490408), (16, 4056505), (20, 3245204), (31, 2093680), (40, 1622602), (62, 1046840), (80, 811301), (124, 523420), (155, 418736), (248, 261710), (310, 209368), (496, 130855), (620, 104684), (1240, 52342), (2480, 26171)]