20585005

素因数分解:

$5^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{809}}^1$

素因数の和:1548

約数の個数: 16

約数和(自身を含む): 28304640

約数和(自身を除く): 7719635

約数列:

[1, 5, 7, 35, 727, 809, 3635, 4045, 5089, 5663, 25445, 28315, 588143, 2940715, 4117001, 20585005]

約数ペア:

[(1, 20585005), (5, 4117001), (7, 2940715), (35, 588143), (727, 28315), (809, 25445), (3635, 5663), (4045, 5089)]