19998582950

素因数分解:

$2^1\times 5^2\times {\mathrm{399971659}}^1$

素因数の和:399971671

約数の個数: 12

約数和(自身を含む): 37197364380

約数和(自身を除く): 17198781430

約数列:

[1, 2, 5, 10, 25, 50, 399971659, 799943318, 1999858295, 3999716590, 9999291475, 19998582950]

約数ペア:

[(1, 19998582950), (2, 9999291475), (5, 3999716590), (10, 1999858295), (25, 799943318), (50, 399971659)]