648021260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{456353}}^1$

素因数の和:456433

約数の個数: 24

約数和(自身を含む): 1380014496

約数和(自身を除く): 731993236

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 456353, 912706, 1825412, 2281765, 4563530, 9127060, 32401063, 64802126, 129604252, 162005315, 324010630, 648021260]

約数ペア:

[(1, 648021260), (2, 324010630), (4, 162005315), (5, 129604252), (10, 64802126), (20, 32401063), (71, 9127060), (142, 4563530), (284, 2281765), (355, 1825412), (710, 912706), (1420, 456353)]