209871128

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{639851}}^1$

素因数の和:639898

約数の個数: 16

約数和(自身を含む): 403106760

約数和(自身を除く): 193235632

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 639851, 1279702, 2559404, 5118808, 26233891, 52467782, 104935564, 209871128]

約数ペア:

[(1, 209871128), (2, 104935564), (4, 52467782), (8, 26233891), (41, 5118808), (82, 2559404), (164, 1279702), (328, 639851)]