20113220

素因数分解:

$2^2\times 5^1\times {\mathrm{1005661}}^1$

素因数の和:1005670

約数の個数: 12

約数和(自身を含む): 42237804

約数和(自身を除く): 22124584

約数列:

[1, 2, 4, 5, 10, 20, 1005661, 2011322, 4022644, 5028305, 10056610, 20113220]

約数ペア:

[(1, 20113220), (2, 10056610), (4, 5028305), (5, 4022644), (10, 2011322), (20, 1005661)]