20008885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{569}}^1$

素因数の和:1128

約数の個数: 16

約数和(自身を含む): 25950960

約数和(自身を除く): 5942075

約数列:

[1, 5, 13, 65, 541, 569, 2705, 2845, 7033, 7397, 35165, 36985, 307829, 1539145, 4001777, 20008885]

約数ペア:

[(1, 20008885), (5, 4001777), (13, 1539145), (65, 307829), (541, 36985), (569, 35165), (2705, 7397), (2845, 7033)]