28062220

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1979}}^1$

素因数の和:2697

約数の個数: 24

約数和(自身を含む): 59043600

約数和(自身を除く): 30981380

約数列:

[1, 2, 4, 5, 10, 20, 709, 1418, 1979, 2836, 3545, 3958, 7090, 7916, 9895, 14180, 19790, 39580, 1403111, 2806222, 5612444, 7015555, 14031110, 28062220]

約数ペア:

[(1, 28062220), (2, 14031110), (4, 7015555), (5, 5612444), (10, 2806222), (20, 1403111), (709, 39580), (1418, 19790), (1979, 14180), (2836, 9895), (3545, 7916), (3958, 7090)]