311939680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149971}}^1$

素因数の和:149999

約数の個数: 48

約数和(自身を含む): 793651824

約数和(自身を除く): 481712144

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 149971, 299942, 599884, 749855, 1199768, 1499710, 1949623, 2399536, 2999420, 3899246, 4799072, 5998840, 7798492, 9748115, 11997680, 15596984, 19496230, 23995360, 31193968, 38992460, 62387936, 77984920, 155969840, 311939680]

約数ペア:

[(1, 311939680), (2, 155969840), (4, 77984920), (5, 62387936), (8, 38992460), (10, 31193968), (13, 23995360), (16, 19496230), (20, 15596984), (26, 11997680), (32, 9748115), (40, 7798492), (52, 5998840), (65, 4799072), (80, 3899246), (104, 2999420), (130, 2399536), (160, 1949623), (208, 1499710), (260, 1199768), (416, 749855), (520, 599884), (1040, 299942), (2080, 149971)]