12890125

素因数分解:

$5^3\times {\mathrm{101}}^1\times {\mathrm{1021}}^1$

素因数の和:1137

約数の個数: 16

約数和(自身を含む): 16262064

約数和(自身を除く): 3371939

約数列:

[1, 5, 25, 101, 125, 505, 1021, 2525, 5105, 12625, 25525, 103121, 127625, 515605, 2578025, 12890125]

約数ペア:

[(1, 12890125), (5, 2578025), (25, 515605), (101, 127625), (125, 103121), (505, 25525), (1021, 12625), (2525, 5105)]