8045397400

素因数分解:

$2^3\times 5^2\times {\mathrm{101}}^1\times {\mathrm{398287}}^1$

素因数の和:398404

約数の個数: 48

約数和(自身を含む): 18890799840

約数和(自身を除く): 10845402440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 200, 202, 404, 505, 808, 1010, 2020, 2525, 4040, 5050, 10100, 20200, 398287, 796574, 1593148, 1991435, 3186296, 3982870, 7965740, 9957175, 15931480, 19914350, 39828700, 40226987, 79657400, 80453974, 160907948, 201134935, 321815896, 402269870, 804539740, 1005674675, 1609079480, 2011349350, 4022698700, 8045397400]

約数ペア:

[(1, 8045397400), (2, 4022698700), (4, 2011349350), (5, 1609079480), (8, 1005674675), (10, 804539740), (20, 402269870), (25, 321815896), (40, 201134935), (50, 160907948), (100, 80453974), (101, 79657400), (200, 40226987), (202, 39828700), (404, 19914350), (505, 15931480), (808, 9957175), (1010, 7965740), (2020, 3982870), (2525, 3186296), (4040, 1991435), (5050, 1593148), (10100, 796574), (20200, 398287)]