28082920

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8887}}^1$

素因数の和:8977

約数の個数: 32

約数和(自身を含む): 63993600

約数和(自身を除く): 35910680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 8887, 17774, 35548, 44435, 71096, 88870, 177740, 355480, 702073, 1404146, 2808292, 3510365, 5616584, 7020730, 14041460, 28082920]

約数ペア:

[(1, 28082920), (2, 14041460), (4, 7020730), (5, 5616584), (8, 3510365), (10, 2808292), (20, 1404146), (40, 702073), (79, 355480), (158, 177740), (316, 88870), (395, 71096), (632, 44435), (790, 35548), (1580, 17774), (3160, 8887)]