880660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4003}}^1$

素因数の和:4023

約数の個数: 24

約数和(自身を含む): 2018016

約数和(自身を除く): 1137356

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 4003, 8006, 16012, 20015, 40030, 44033, 80060, 88066, 176132, 220165, 440330, 880660]

約数ペア:

[(1, 880660), (2, 440330), (4, 220165), (5, 176132), (10, 88066), (11, 80060), (20, 44033), (22, 40030), (44, 20015), (55, 16012), (110, 8006), (220, 4003)]