20287564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20047}}^1$

素因数の和:20085

約数の個数: 24

約数和(自身を含む): 40416768

約数和(自身を除く): 20129204

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20047, 40094, 80188, 220517, 441034, 461081, 882068, 922162, 1844324, 5071891, 10143782, 20287564]

約数ペア:

[(1, 20287564), (2, 10143782), (4, 5071891), (11, 1844324), (22, 922162), (23, 882068), (44, 461081), (46, 441034), (92, 220517), (253, 80188), (506, 40094), (1012, 20047)]