68708380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{264263}}^1$

素因数の和:264285

約数の個数: 24

約数和(自身を含む): 155387232

約数和(自身を除く): 86678852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 264263, 528526, 1057052, 1321315, 2642630, 3435419, 5285260, 6870838, 13741676, 17177095, 34354190, 68708380]

約数ペア:

[(1, 68708380), (2, 34354190), (4, 17177095), (5, 13741676), (10, 6870838), (13, 5285260), (20, 3435419), (26, 2642630), (52, 1321315), (65, 1057052), (130, 528526), (260, 264263)]