20872895

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{3511}}^1$

素因数の和:3586

約数の個数: 16

約数和(自身を含む): 26550720

約数和(自身を除く): 5677825

約数列:

[1, 5, 29, 41, 145, 205, 1189, 3511, 5945, 17555, 101819, 143951, 509095, 719755, 4174579, 20872895]

約数ペア:

[(1, 20872895), (5, 4174579), (29, 719755), (41, 509095), (145, 143951), (205, 101819), (1189, 17555), (3511, 5945)]