810640

素因数分解:

$2^4\times 5^1\times {\mathrm{10133}}^1$

素因数の和:10146

約数の個数: 20

約数和(自身を含む): 1884924

約数和(自身を除く): 1074284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10133, 20266, 40532, 50665, 81064, 101330, 162128, 202660, 405320, 810640]

約数ペア:

[(1, 810640), (2, 405320), (4, 202660), (5, 162128), (8, 101330), (10, 81064), (16, 50665), (20, 40532), (40, 20266), (80, 10133)]