18307220

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{8887}}^1$

素因数の和:8999

約数の個数: 24

約数和(自身を含む): 38822784

約数和(自身を除く): 20515564

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 8887, 17774, 35548, 44435, 88870, 177740, 915361, 1830722, 3661444, 4576805, 9153610, 18307220]

約数ペア:

[(1, 18307220), (2, 9153610), (4, 4576805), (5, 3661444), (10, 1830722), (20, 915361), (103, 177740), (206, 88870), (412, 44435), (515, 35548), (1030, 17774), (2060, 8887)]