864604

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{1279}}^1$

素因数の和:1309

約数の個数: 18

約数和(自身を含む): 1639680

約数和(自身を除く): 775076

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 1279, 2558, 5116, 16627, 33254, 66508, 216151, 432302, 864604]

約数ペア:

[(1, 864604), (2, 432302), (4, 216151), (13, 66508), (26, 33254), (52, 16627), (169, 5116), (338, 2558), (676, 1279)]