28726340

素因数分解:

$2^2\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{1279}}^1$

素因数の和:2411

約数の個数: 24

約数和(自身を含む): 60426240

約数和(自身を除く): 31699900

約数列:

[1, 2, 4, 5, 10, 20, 1123, 1279, 2246, 2558, 4492, 5116, 5615, 6395, 11230, 12790, 22460, 25580, 1436317, 2872634, 5745268, 7181585, 14363170, 28726340]

約数ペア:

[(1, 28726340), (2, 14363170), (4, 7181585), (5, 5745268), (10, 2872634), (20, 1436317), (1123, 25580), (1279, 22460), (2246, 12790), (2558, 11230), (4492, 6395), (5116, 5615)]