40200025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{51871}}^1$

素因数の和:51912

約数の個数: 12

約数和(自身を含む): 51457024

約数和(自身を除く): 11256999

約数列:

[1, 5, 25, 31, 155, 775, 51871, 259355, 1296775, 1608001, 8040005, 40200025]

約数ペア:

[(1, 40200025), (5, 8040005), (25, 1608001), (31, 1296775), (155, 259355), (775, 51871)]