639348478

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{112601}}^1$

素因数の和:112787

約数の個数: 16

約数和(自身を含む): 1021525344

約数和(自身を除く): 382176866

約数列:

[1, 2, 17, 34, 167, 334, 2839, 5678, 112601, 225202, 1914217, 3828434, 18804367, 37608734, 319674239, 639348478]

約数ペア:

[(1, 639348478), (2, 319674239), (17, 37608734), (34, 18804367), (167, 3828434), (334, 1914217), (2839, 225202), (5678, 112601)]