218199745

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{17449}}^1$

素因数の和:17556

約数の個数: 16

約数和(自身を含む): 272638800

約数和(自身を除く): 54439055

約数列:

[1, 5, 41, 61, 205, 305, 2501, 12505, 17449, 87245, 715409, 1064389, 3577045, 5321945, 43639949, 218199745]

約数ペア:

[(1, 218199745), (5, 43639949), (41, 5321945), (61, 3577045), (205, 1064389), (305, 715409), (2501, 87245), (12505, 17449)]