12771820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3209}}^1$

素因数の和:3417

約数の個数: 24

約数和(自身を含む): 26964000

約数和(自身を除く): 14192180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3209, 3980, 6418, 12836, 16045, 32090, 64180, 638591, 1277182, 2554364, 3192955, 6385910, 12771820]

約数ペア:

[(1, 12771820), (2, 6385910), (4, 3192955), (5, 2554364), (10, 1277182), (20, 638591), (199, 64180), (398, 32090), (796, 16045), (995, 12836), (1990, 6418), (3209, 3980)]