138794864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{667283}}^1$

素因数の和:667304

約数の個数: 20

約数和(自身を含む): 289601256

約数和(自身を除く): 150806392

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 667283, 1334566, 2669132, 5338264, 8674679, 10676528, 17349358, 34698716, 69397432, 138794864]

約数ペア:

[(1, 138794864), (2, 69397432), (4, 34698716), (8, 17349358), (13, 10676528), (16, 8674679), (26, 5338264), (52, 2669132), (104, 1334566), (208, 667283)]