28169740

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10133}}^1$

素因数の和:10281

約数の個数: 24

約数和(自身を含む): 59587920

約数和(自身を除く): 31418180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 10133, 20266, 40532, 50665, 101330, 202660, 1408487, 2816974, 5633948, 7042435, 14084870, 28169740]

約数ペア:

[(1, 28169740), (2, 14084870), (4, 7042435), (5, 5633948), (10, 2816974), (20, 1408487), (139, 202660), (278, 101330), (556, 50665), (695, 40532), (1390, 20266), (2780, 10133)]