5128780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2539}}^1$

素因数の和:2649

約数の個数: 24

約数和(自身を含む): 10881360

約数和(自身を除く): 5752580

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 2539, 5078, 10156, 12695, 25390, 50780, 256439, 512878, 1025756, 1282195, 2564390, 5128780]

約数ペア:

[(1, 5128780), (2, 2564390), (4, 1282195), (5, 1025756), (10, 512878), (20, 256439), (101, 50780), (202, 25390), (404, 12695), (505, 10156), (1010, 5078), (2020, 2539)]