18328025

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{17881}}^1$

素因数の和:17932

約数の個数: 12

約数和(自身を含む): 23282364

約数和(自身を除く): 4954339

約数列:

[1, 5, 25, 41, 205, 1025, 17881, 89405, 447025, 733121, 3665605, 18328025]

約数ペア:

[(1, 18328025), (5, 3665605), (25, 733121), (41, 447025), (205, 89405), (1025, 17881)]