20877340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8627}}^1$

素因数の和:8658

約数の個数: 36

約数和(自身を含む): 48196008

約数和(自身を除く): 27318668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8627, 17254, 34508, 43135, 86270, 94897, 172540, 189794, 379588, 474485, 948970, 1043867, 1897940, 2087734, 4175468, 5219335, 10438670, 20877340]

約数ペア:

[(1, 20877340), (2, 10438670), (4, 5219335), (5, 4175468), (10, 2087734), (11, 1897940), (20, 1043867), (22, 948970), (44, 474485), (55, 379588), (110, 189794), (121, 172540), (220, 94897), (242, 86270), (484, 43135), (605, 34508), (1210, 17254), (2420, 8627)]