138771568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{667171}}^1$

素因数の和:667192

約数の個数: 20

約数和(自身を含む): 289552648

約数和(自身を除く): 150781080

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 667171, 1334342, 2668684, 5337368, 8673223, 10674736, 17346446, 34692892, 69385784, 138771568]

約数ペア:

[(1, 138771568), (2, 69385784), (4, 34692892), (8, 17346446), (13, 10674736), (16, 8673223), (26, 5337368), (52, 2668684), (104, 1334342), (208, 667171)]