31438660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{142903}}^1$

素因数の和:142923

約数の個数: 24

約数和(自身を含む): 72023616

約数和(自身を除く): 40584956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 142903, 285806, 571612, 714515, 1429030, 1571933, 2858060, 3143866, 6287732, 7859665, 15719330, 31438660]

約数ペア:

[(1, 31438660), (2, 15719330), (4, 7859665), (5, 6287732), (10, 3143866), (11, 2858060), (20, 1571933), (22, 1429030), (44, 714515), (55, 571612), (110, 285806), (220, 142903)]