81712852

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{120877}}^1$

素因数の和:120907

約数の個数: 18

約数和(自身を含む): 154844718

約数和(自身を除く): 73131866

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 120877, 241754, 483508, 1571401, 3142802, 6285604, 20428213, 40856426, 81712852]

約数ペア:

[(1, 81712852), (2, 40856426), (4, 20428213), (13, 6285604), (26, 3142802), (52, 1571401), (169, 483508), (338, 241754), (676, 120877)]