28089820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127681}}^1$

素因数の和:127701

約数の個数: 24

約数和(自身を含む): 64351728

約数和(自身を除く): 36261908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127681, 255362, 510724, 638405, 1276810, 1404491, 2553620, 2808982, 5617964, 7022455, 14044910, 28089820]

約数ペア:

[(1, 28089820), (2, 14044910), (4, 7022455), (5, 5617964), (10, 2808982), (11, 2553620), (20, 1404491), (22, 1276810), (44, 638405), (55, 510724), (110, 255362), (220, 127681)]