20874820

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{2179}}^1$

素因数の和:2667

約数の個数: 24

約数和(自身を含む): 43948800

約数和(自身を除く): 23073980

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2179, 2395, 4358, 4790, 8716, 9580, 10895, 21790, 43580, 1043741, 2087482, 4174964, 5218705, 10437410, 20874820]

約数ペア:

[(1, 20874820), (2, 10437410), (4, 5218705), (5, 4174964), (10, 2087482), (20, 1043741), (479, 43580), (958, 21790), (1916, 10895), (2179, 9580), (2395, 8716), (4358, 4790)]