20008025

素因数分解:

$5^2\times {\mathrm{421}}^1\times {\mathrm{1901}}^1$

素因数の和:2332

約数の個数: 12

約数和(自身を含む): 24881964

約数和(自身を除く): 4873939

約数列:

[1, 5, 25, 421, 1901, 2105, 9505, 10525, 47525, 800321, 4001605, 20008025]

約数ペア:

[(1, 20008025), (5, 4001605), (25, 800321), (421, 47525), (1901, 10525), (2105, 9505)]