20181382180

素因数分解:

$2^2\times 5^1\times {\mathrm{1009069109}}^1$

素因数の和:1009069118

約数の個数: 12

約数和(自身を含む): 42380902620

約数和(自身を除く): 22199520440

約数列:

[1, 2, 4, 5, 10, 20, 1009069109, 2018138218, 4036276436, 5045345545, 10090691090, 20181382180]

約数ペア:

[(1, 20181382180), (2, 10090691090), (4, 5045345545), (5, 4036276436), (10, 2018138218), (20, 1009069109)]