20158100

素因数分解:

$2^2\times 5^2\times {\mathrm{201581}}^1$

素因数の和:201595

約数の個数: 18

約数和(自身を含む): 43743294

約数和(自身を除く): 23585194

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 201581, 403162, 806324, 1007905, 2015810, 4031620, 5039525, 10079050, 20158100]

約数ペア:

[(1, 20158100), (2, 10079050), (4, 5039525), (5, 4031620), (10, 2015810), (20, 1007905), (25, 806324), (50, 403162), (100, 201581)]