309948025

素因数分解:

$5^2\times {\mathrm{821}}^1\times {\mathrm{15101}}^1$

素因数の和:15932

約数の個数: 12

約数和(自身を含む): 384829164

約数和(自身を除く): 74881139

約数列:

[1, 5, 25, 821, 4105, 15101, 20525, 75505, 377525, 12397921, 61989605, 309948025]

約数ペア:

[(1, 309948025), (5, 61989605), (25, 12397921), (821, 377525), (4105, 75505), (15101, 20525)]