20880845

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{1471}}^1$

素因数の和:1660

約数の個数: 16

約数和(自身を含む): 26707968

約数和(自身を除く): 5827123

約数列:

[1, 5, 17, 85, 167, 835, 1471, 2839, 7355, 14195, 25007, 125035, 245657, 1228285, 4176169, 20880845]

約数ペア:

[(1, 20880845), (5, 4176169), (17, 1228285), (85, 245657), (167, 125035), (835, 25007), (1471, 14195), (2839, 7355)]