18061240

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2269}}^1$

素因数の和:2479

約数の個数: 32

約数和(自身を含む): 40860000

約数和(自身を除く): 22798760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 2269, 3980, 4538, 7960, 9076, 11345, 18152, 22690, 45380, 90760, 451531, 903062, 1806124, 2257655, 3612248, 4515310, 9030620, 18061240]

約数ペア:

[(1, 18061240), (2, 9030620), (4, 4515310), (5, 3612248), (8, 2257655), (10, 1806124), (20, 903062), (40, 451531), (199, 90760), (398, 45380), (796, 22690), (995, 18152), (1592, 11345), (1990, 9076), (2269, 7960), (3980, 4538)]