490405828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{70991}}^1$

素因数の和:71163

約数の個数: 24

約数和(自身を含む): 942205824

約数和(自身を除く): 451799996

約数列:

[1, 2, 4, 11, 22, 44, 157, 314, 628, 1727, 3454, 6908, 70991, 141982, 283964, 780901, 1561802, 3123604, 11145587, 22291174, 44582348, 122601457, 245202914, 490405828]

約数ペア:

[(1, 490405828), (2, 245202914), (4, 122601457), (11, 44582348), (22, 22291174), (44, 11145587), (157, 3123604), (314, 1561802), (628, 780901), (1727, 283964), (3454, 141982), (6908, 70991)]