1780493140

素因数分解:

$2^2\times 5^1\times {\mathrm{1861}}^1\times {\mathrm{47837}}^1$

素因数の和:49707

約数の個数: 24

約数和(自身を含む): 3741122952

約数和(自身を除く): 1960629812

約数列:

[1, 2, 4, 5, 10, 20, 1861, 3722, 7444, 9305, 18610, 37220, 47837, 95674, 191348, 239185, 478370, 956740, 89024657, 178049314, 356098628, 445123285, 890246570, 1780493140]

約数ペア:

[(1, 1780493140), (2, 890246570), (4, 445123285), (5, 356098628), (10, 178049314), (20, 89024657), (1861, 956740), (3722, 478370), (7444, 239185), (9305, 191348), (18610, 95674), (37220, 47837)]