28257620

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{10313}}^1$

素因数の和:10459

約数の個数: 24

約数和(自身を含む): 59779944

約数和(自身を除く): 31522324

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 10313, 20626, 41252, 51565, 103130, 206260, 1412881, 2825762, 5651524, 7064405, 14128810, 28257620]

約数ペア:

[(1, 28257620), (2, 14128810), (4, 7064405), (5, 5651524), (10, 2825762), (20, 1412881), (137, 206260), (274, 103130), (548, 51565), (685, 41252), (1370, 20626), (2740, 10313)]