20605220

素因数分解:

$2^2\times 5^1\times {\mathrm{929}}^1\times {\mathrm{1109}}^1$

素因数の和:2047

約数の個数: 24

約数和(自身を含む): 43356600

約数和(自身を除く): 22751380

約数列:

[1, 2, 4, 5, 10, 20, 929, 1109, 1858, 2218, 3716, 4436, 4645, 5545, 9290, 11090, 18580, 22180, 1030261, 2060522, 4121044, 5151305, 10302610, 20605220]

約数ペア:

[(1, 20605220), (2, 10302610), (4, 5151305), (5, 4121044), (10, 2060522), (20, 1030261), (929, 22180), (1109, 18580), (1858, 11090), (2218, 9290), (3716, 5545), (4436, 4645)]