749065820

素因数分解:

$2^2\times 5^1\times {\mathrm{1811}}^1\times {\mathrm{20681}}^1$

素因数の和:22501

約数の個数: 24

約数和(自身を含む): 1573982928

約数和(自身を除く): 824917108

約数列:

[1, 2, 4, 5, 10, 20, 1811, 3622, 7244, 9055, 18110, 20681, 36220, 41362, 82724, 103405, 206810, 413620, 37453291, 74906582, 149813164, 187266455, 374532910, 749065820]

約数ペア:

[(1, 749065820), (2, 374532910), (4, 187266455), (5, 149813164), (10, 74906582), (20, 37453291), (1811, 413620), (3622, 206810), (7244, 103405), (9055, 82724), (18110, 41362), (20681, 36220)]