18609020

素因数分解:

$2^2\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1109}}^1$

素因数の和:1957

約数の個数: 24

約数和(自身を含む): 39160800

約数和(自身を除く): 20551780

約数列:

[1, 2, 4, 5, 10, 20, 839, 1109, 1678, 2218, 3356, 4195, 4436, 5545, 8390, 11090, 16780, 22180, 930451, 1860902, 3721804, 4652255, 9304510, 18609020]

約数ペア:

[(1, 18609020), (2, 9304510), (4, 4652255), (5, 3721804), (10, 1860902), (20, 930451), (839, 22180), (1109, 16780), (1678, 11090), (2218, 8390), (3356, 5545), (4195, 4436)]