2021609875

素因数分解:

$5^3\times {\mathrm{821}}^1\times {\mathrm{19699}}^1$

素因数の和:20535

約数の個数: 16

約数和(自身を含む): 2526170400

約数和(自身を除く): 504560525

約数列:

[1, 5, 25, 125, 821, 4105, 19699, 20525, 98495, 102625, 492475, 2462375, 16172879, 80864395, 404321975, 2021609875]

約数ペア:

[(1, 2021609875), (5, 404321975), (25, 80864395), (125, 16172879), (821, 2462375), (4105, 492475), (19699, 102625), (20525, 98495)]