31891960

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{5351}}^1$

素因数の和:5511

約数の個数: 32

約数和(自身を含む): 72252000

約数和(自身を除く): 40360040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5351, 5960, 10702, 21404, 26755, 42808, 53510, 107020, 214040, 797299, 1594598, 3189196, 3986495, 6378392, 7972990, 15945980, 31891960]

約数ペア:

[(1, 31891960), (2, 15945980), (4, 7972990), (5, 6378392), (8, 3986495), (10, 3189196), (20, 1594598), (40, 797299), (149, 214040), (298, 107020), (596, 53510), (745, 42808), (1192, 26755), (1490, 21404), (2980, 10702), (5351, 5960)]