20146220

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1979}}^1$

素因数の和:2497

約数の個数: 24

約数和(自身を含む): 42411600

約数和(自身を除く): 22265380

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 1979, 2036, 2545, 3958, 5090, 7916, 9895, 10180, 19790, 39580, 1007311, 2014622, 4029244, 5036555, 10073110, 20146220]

約数ペア:

[(1, 20146220), (2, 10073110), (4, 5036555), (5, 4029244), (10, 2014622), (20, 1007311), (509, 39580), (1018, 19790), (1979, 10180), (2036, 9895), (2545, 7916), (3958, 5090)]