18231340

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8363}}^1$

素因数の和:8481

約数の個数: 24

約数和(自身を含む): 38641680

約数和(自身を除く): 20410340

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8363, 16726, 33452, 41815, 83630, 167260, 911567, 1823134, 3646268, 4557835, 9115670, 18231340]

約数ペア:

[(1, 18231340), (2, 9115670), (4, 4557835), (5, 3646268), (10, 1823134), (20, 911567), (109, 167260), (218, 83630), (436, 41815), (545, 33452), (1090, 16726), (2180, 8363)]