639783806

素因数分解:

$2^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1\times {\mathrm{8329}}^1$

素因数の和:8723

約数の個数: 16

約数和(自身を含む): 969612000

約数和(自身を除く): 329828194

約数列:

[1, 2, 193, 199, 386, 398, 8329, 16658, 38407, 76814, 1607497, 1657471, 3214994, 3314942, 319891903, 639783806]

約数ペア:

[(1, 639783806), (2, 319891903), (193, 3314942), (199, 3214994), (386, 1657471), (398, 1607497), (8329, 76814), (16658, 38407)]