379899580

素因数分解:

$2^2\times 5^1\times {\mathrm{18994979}}^1$

素因数の和:18994988

約数の個数: 12

約数和(自身を含む): 797789160

約数和(自身を除く): 417889580

約数列:

[1, 2, 4, 5, 10, 20, 18994979, 37989958, 75979916, 94974895, 189949790, 379899580]

約数ペア:

[(1, 379899580), (2, 189949790), (4, 94974895), (5, 75979916), (10, 37989958), (20, 18994979)]