199985525

素因数分解:

$5^2\times {\mathrm{421}}^1\times {\mathrm{19001}}^1$

素因数の和:19432

約数の個数: 12

約数和(自身を含む): 248584164

約数和(自身を除く): 48598639

約数列:

[1, 5, 25, 421, 2105, 10525, 19001, 95005, 475025, 7999421, 39997105, 199985525]

約数ペア:

[(1, 199985525), (5, 39997105), (25, 7999421), (421, 475025), (2105, 95005), (10525, 19001)]