18835780

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1069}}^1$

素因数の和:1959

約数の個数: 24

約数和(自身を含む): 39637080

約数和(自身を除く): 20801300

約数列:

[1, 2, 4, 5, 10, 20, 881, 1069, 1762, 2138, 3524, 4276, 4405, 5345, 8810, 10690, 17620, 21380, 941789, 1883578, 3767156, 4708945, 9417890, 18835780]

約数ペア:

[(1, 18835780), (2, 9417890), (4, 4708945), (5, 3767156), (10, 1883578), (20, 941789), (881, 21380), (1069, 17620), (1762, 10690), (2138, 8810), (3524, 5345), (4276, 4405)]