18723220

素因数分解:

$2^2\times 5^1\times {\mathrm{936161}}^1$

素因数の和:936170

約数の個数: 12

約数和(自身を含む): 39318804

約数和(自身を除く): 20595584

約数列:

[1, 2, 4, 5, 10, 20, 936161, 1872322, 3744644, 4680805, 9361610, 18723220]

約数ペア:

[(1, 18723220), (2, 9361610), (4, 4680805), (5, 3744644), (10, 1872322), (20, 936161)]