18463220

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4639}}^1$

素因数の和:4847

約数の個数: 24

約数和(自身を含む): 38976000

約数和(自身を除く): 20512780

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4639, 9278, 18556, 23195, 46390, 92780, 923161, 1846322, 3692644, 4615805, 9231610, 18463220]

約数ペア:

[(1, 18463220), (2, 9231610), (4, 4615805), (5, 3692644), (10, 1846322), (20, 923161), (199, 92780), (398, 46390), (796, 23195), (995, 18556), (1990, 9278), (3980, 4639)]