421160920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{244861}}^1$

素因数の和:244915

約数の個数: 32

約数和(自身を含む): 969653520

約数和(自身を除く): 548492600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 244861, 489722, 979444, 1224305, 1958888, 2448610, 4897220, 9794440, 10529023, 21058046, 42116092, 52645115, 84232184, 105290230, 210580460, 421160920]

約数ペア:

[(1, 421160920), (2, 210580460), (4, 105290230), (5, 84232184), (8, 52645115), (10, 42116092), (20, 21058046), (40, 10529023), (43, 9794440), (86, 4897220), (172, 2448610), (215, 1958888), (344, 1224305), (430, 979444), (860, 489722), (1720, 244861)]