128646728

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{99881}}^1$

素因数の和:99917

約数の個数: 32

約数和(自身を含む): 287660160

約数和(自身を除く): 159013432

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 99881, 199762, 399524, 699167, 799048, 1398334, 2297263, 2796668, 4594526, 5593336, 9189052, 16080841, 18378104, 32161682, 64323364, 128646728]

約数ペア:

[(1, 128646728), (2, 64323364), (4, 32161682), (7, 18378104), (8, 16080841), (14, 9189052), (23, 5593336), (28, 4594526), (46, 2796668), (56, 2297263), (92, 1398334), (161, 799048), (184, 699167), (322, 399524), (644, 199762), (1288, 99881)]