2021819960

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{490733}}^1$

素因数の和:490847

約数の個数: 32

約数和(自身を含む): 4593270240

約数和(自身を除く): 2571450280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 490733, 981466, 1962932, 2453665, 3925864, 4907330, 9814660, 19629320, 50545499, 101090998, 202181996, 252727495, 404363992, 505454990, 1010909980, 2021819960]

約数ペア:

[(1, 2021819960), (2, 1010909980), (4, 505454990), (5, 404363992), (8, 252727495), (10, 202181996), (20, 101090998), (40, 50545499), (103, 19629320), (206, 9814660), (412, 4907330), (515, 3925864), (824, 2453665), (1030, 1962932), (2060, 981466), (4120, 490733)]