2821820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{709}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 5964000

約数和(自身を除く): 3142180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 709, 796, 995, 1418, 1990, 2836, 3545, 3980, 7090, 14180, 141091, 282182, 564364, 705455, 1410910, 2821820]

約数ペア:

[(1, 2821820), (2, 1410910), (4, 705455), (5, 564364), (10, 282182), (20, 141091), (199, 14180), (398, 7090), (709, 3980), (796, 3545), (995, 2836), (1418, 1990)]