15995620

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4019}}^1$

素因数の和:4227

約数の個数: 24

約数和(自身を含む): 33768000

約数和(自身を除く): 17772380

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4019, 8038, 16076, 20095, 40190, 80380, 799781, 1599562, 3199124, 3998905, 7997810, 15995620]

約数ペア:

[(1, 15995620), (2, 7997810), (4, 3998905), (5, 3199124), (10, 1599562), (20, 799781), (199, 80380), (398, 40190), (796, 20095), (995, 16076), (1990, 8038), (3980, 4019)]