724355420

素因数分解:

$2^2\times 5^1\times {\mathrm{36217771}}^1$

素因数の和:36217780

約数の個数: 12

約数和(自身を含む): 1521146424

約数和(自身を除く): 796791004

約数列:

[1, 2, 4, 5, 10, 20, 36217771, 72435542, 144871084, 181088855, 362177710, 724355420]

約数ペア:

[(1, 724355420), (2, 362177710), (4, 181088855), (5, 144871084), (10, 72435542), (20, 36217771)]