42797740

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21187}}^1$

素因数の和:21297

約数の個数: 24

約数和(自身を含む): 90769392

約数和(自身を除く): 47971652

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 21187, 42374, 84748, 105935, 211870, 423740, 2139887, 4279774, 8559548, 10699435, 21398870, 42797740]

約数ペア:

[(1, 42797740), (2, 21398870), (4, 10699435), (5, 8559548), (10, 4279774), (20, 2139887), (101, 423740), (202, 211870), (404, 105935), (505, 84748), (1010, 42374), (2020, 21187)]