201157420

素因数分解:

$2^2\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{9851}}^1$

素因数の和:10881

約数の個数: 24

約数和(自身を含む): 422887248

約数和(自身を除く): 221729828

約数列:

[1, 2, 4, 5, 10, 20, 1021, 2042, 4084, 5105, 9851, 10210, 19702, 20420, 39404, 49255, 98510, 197020, 10057871, 20115742, 40231484, 50289355, 100578710, 201157420]

約数ペア:

[(1, 201157420), (2, 100578710), (4, 50289355), (5, 40231484), (10, 20115742), (20, 10057871), (1021, 197020), (2042, 98510), (4084, 49255), (5105, 39404), (9851, 20420), (10210, 19702)]