20870845

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1669}}^1$

素因数の和:1776

約数の個数: 16

約数和(自身を含む): 26092080

約数和(自身を除く): 5221235

約数列:

[1, 5, 41, 61, 205, 305, 1669, 2501, 8345, 12505, 68429, 101809, 342145, 509045, 4174169, 20870845]

約数ペア:

[(1, 20870845), (5, 4174169), (41, 509045), (61, 342145), (205, 101809), (305, 68429), (1669, 12505), (2501, 8345)]