81271564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{5323}}^1$

素因数の和:5685

約数の個数: 24

約数和(自身を含む): 155631168

約数和(自身を除く): 74359604

約数列:

[1, 2, 4, 11, 22, 44, 347, 694, 1388, 3817, 5323, 7634, 10646, 15268, 21292, 58553, 117106, 234212, 1847081, 3694162, 7388324, 20317891, 40635782, 81271564]

約数ペア:

[(1, 81271564), (2, 40635782), (4, 20317891), (11, 7388324), (22, 3694162), (44, 1847081), (347, 234212), (694, 117106), (1388, 58553), (3817, 21292), (5323, 15268), (7634, 10646)]