639352780802

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{989710187}}^1$

素因数の和:989710225

約数の個数: 16

約数和(自身を含む): 1068887003040

約数和(自身を除く): 429534222238

約数列:

[1, 2, 17, 19, 34, 38, 323, 646, 989710187, 1979420374, 16825073179, 18804493553, 33650146358, 37608987106, 319676390401, 639352780802]

約数ペア:

[(1, 639352780802), (2, 319676390401), (17, 37608987106), (19, 33650146358), (34, 18804493553), (38, 16825073179), (323, 1979420374), (646, 989710187)]