2630780

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{661}}^1$

素因数の和:869

約数の個数: 24

約数和(自身を含む): 5560800

約数和(自身を除く): 2930020

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 661, 796, 995, 1322, 1990, 2644, 3305, 3980, 6610, 13220, 131539, 263078, 526156, 657695, 1315390, 2630780]

約数ペア:

[(1, 2630780), (2, 1315390), (4, 657695), (5, 526156), (10, 263078), (20, 131539), (199, 13220), (398, 6610), (661, 3980), (796, 3305), (995, 2644), (1322, 1990)]