20402008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{231841}}^1$

素因数の和:231858

約数の個数: 16

約数和(自身を含む): 41731560

約数和(自身を除く): 21329552

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 231841, 463682, 927364, 1854728, 2550251, 5100502, 10201004, 20402008]

約数ペア:

[(1, 20402008), (2, 10201004), (4, 5100502), (8, 2550251), (11, 1854728), (22, 927364), (44, 463682), (88, 231841)]