31202680

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3697}}^1$

素因数の和:3919

約数の個数: 32

約数和(自身を含む): 70557840

約数和(自身を除く): 39355160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 3697, 4220, 7394, 8440, 14788, 18485, 29576, 36970, 73940, 147880, 780067, 1560134, 3120268, 3900335, 6240536, 7800670, 15601340, 31202680]

約数ペア:

[(1, 31202680), (2, 15601340), (4, 7800670), (5, 6240536), (8, 3900335), (10, 3120268), (20, 1560134), (40, 780067), (211, 147880), (422, 73940), (844, 36970), (1055, 29576), (1688, 18485), (2110, 14788), (3697, 8440), (4220, 7394)]