20878660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{94903}}^1$

素因数の和:94923

約数の個数: 24

約数和(自身を含む): 47831616

約数和(自身を除く): 26952956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 94903, 189806, 379612, 474515, 949030, 1043933, 1898060, 2087866, 4175732, 5219665, 10439330, 20878660]

約数ペア:

[(1, 20878660), (2, 10439330), (4, 5219665), (5, 4175732), (10, 2087866), (11, 1898060), (20, 1043933), (22, 949030), (44, 474515), (55, 379612), (110, 189806), (220, 94903)]