85427830

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{20887}}^1$

素因数の和:21303

約数の個数: 16

約数和(自身を含む): 154153440

約数和(自身を除く): 68725610

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 20887, 41774, 104435, 208870, 8542783, 17085566, 42713915, 85427830]

約数ペア:

[(1, 85427830), (2, 42713915), (5, 17085566), (10, 8542783), (409, 208870), (818, 104435), (2045, 41774), (4090, 20887)]