2015960

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 4590000

約数和(自身を除く): 2574040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 499, 505, 808, 998, 1010, 1996, 2020, 2495, 3992, 4040, 4990, 9980, 19960, 50399, 100798, 201596, 251995, 403192, 503990, 1007980, 2015960]

約数ペア:

[(1, 2015960), (2, 1007980), (4, 503990), (5, 403192), (8, 251995), (10, 201596), (20, 100798), (40, 50399), (101, 19960), (202, 9980), (404, 4990), (499, 4040), (505, 3992), (808, 2495), (998, 2020), (1010, 1996)]