201816920

素因数分解:

$2^3\times 5^1\times {\mathrm{5045423}}^1$

素因数の和:5045434

約数の個数: 16

約数和(自身を含む): 454088160

約数和(自身を除く): 252271240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5045423, 10090846, 20181692, 25227115, 40363384, 50454230, 100908460, 201816920]

約数ペア:

[(1, 201816920), (2, 100908460), (4, 50454230), (5, 40363384), (8, 25227115), (10, 20181692), (20, 10090846), (40, 5045423)]