19305940

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2179}}^1$

素因数の和:2631

約数の個数: 24

約数和(自身を含む): 40652640

約数和(自身を除く): 21346700

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2179, 2215, 4358, 4430, 8716, 8860, 10895, 21790, 43580, 965297, 1930594, 3861188, 4826485, 9652970, 19305940]

約数ペア:

[(1, 19305940), (2, 9652970), (4, 4826485), (5, 3861188), (10, 1930594), (20, 965297), (443, 43580), (886, 21790), (1772, 10895), (2179, 8860), (2215, 8716), (4358, 4430)]