639807974

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{82301}}^1$

素因数の和:82352

約数の個数: 24

約数和(自身を含む): 1084411152

約数和(自身を除く): 444603178

約数列:

[1, 2, 13, 23, 26, 46, 169, 299, 338, 598, 3887, 7774, 82301, 164602, 1069913, 1892923, 2139826, 3785846, 13908869, 24607999, 27817738, 49215998, 319903987, 639807974]

約数ペア:

[(1, 639807974), (2, 319903987), (13, 49215998), (23, 27817738), (26, 24607999), (46, 13908869), (169, 3785846), (299, 2139826), (338, 1892923), (598, 1069913), (3887, 164602), (7774, 82301)]