20038100

素因数分解:

$2^2\times 5^2\times {\mathrm{200381}}^1$

素因数の和:200395

約数の個数: 18

約数和(自身を含む): 43482894

約数和(自身を除く): 23444794

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 200381, 400762, 801524, 1001905, 2003810, 4007620, 5009525, 10019050, 20038100]

約数ペア:

[(1, 20038100), (2, 10019050), (4, 5009525), (5, 4007620), (10, 2003810), (20, 1001905), (25, 801524), (50, 400762), (100, 200381)]