42189100

素因数分解:

$2^2\times 5^2\times {\mathrm{421891}}^1$

素因数の和:421905

約数の個数: 18

約数和(自身を含む): 91550564

約数和(自身を除く): 49361464

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 421891, 843782, 1687564, 2109455, 4218910, 8437820, 10547275, 21094550, 42189100]

約数ペア:

[(1, 42189100), (2, 21094550), (4, 10547275), (5, 8437820), (10, 4218910), (20, 2109455), (25, 1687564), (50, 843782), (100, 421891)]