28443905

素因数分解:

$5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1987}}^1$

素因数の和:2408

約数の個数: 16

約数和(自身を含む): 39123840

約数和(自身を除く): 10679935

約数列:

[1, 5, 7, 35, 409, 1987, 2045, 2863, 9935, 13909, 14315, 69545, 812683, 4063415, 5688781, 28443905]

約数ペア:

[(1, 28443905), (5, 5688781), (7, 4063415), (35, 812683), (409, 69545), (1987, 14315), (2045, 13909), (2863, 9935)]