18240580

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6121}}^1$

素因数の和:6279

約数の個数: 24

約数和(自身を含む): 38568600

約数和(自身を除く): 20328020

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6121, 12242, 24484, 30605, 61210, 122420, 912029, 1824058, 3648116, 4560145, 9120290, 18240580]

約数ペア:

[(1, 18240580), (2, 9120290), (4, 4560145), (5, 3648116), (10, 1824058), (20, 912029), (149, 122420), (298, 61210), (596, 30605), (745, 24484), (1490, 12242), (2980, 6121)]