12989128

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{199}}^2$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 25074630

約数和(自身を除く): 12085502

約数列:

[1, 2, 4, 8, 41, 82, 164, 199, 328, 398, 796, 1592, 8159, 16318, 32636, 39601, 65272, 79202, 158404, 316808, 1623641, 3247282, 6494564, 12989128]

約数ペア:

[(1, 12989128), (2, 6494564), (4, 3247282), (8, 1623641), (41, 316808), (82, 158404), (164, 79202), (199, 65272), (328, 39601), (398, 32636), (796, 16318), (1592, 8159)]