128427756

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{248891}}^1$

素因数の和:248941

約数の個数: 24

約数和(自身を含む): 306634944

約数和(自身を除く): 178207188

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 248891, 497782, 746673, 995564, 1493346, 2986692, 10702313, 21404626, 32106939, 42809252, 64213878, 128427756]

約数ペア:

[(1, 128427756), (2, 64213878), (3, 42809252), (4, 32106939), (6, 21404626), (12, 10702313), (43, 2986692), (86, 1493346), (129, 995564), (172, 746673), (258, 497782), (516, 248891)]