18427400

素因数分解:

$2^3\times 5^2\times {\mathrm{199}}^1\times {\mathrm{463}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 43152000

約数和(自身を除く): 24724600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 199, 200, 398, 463, 796, 926, 995, 1592, 1852, 1990, 2315, 3704, 3980, 4630, 4975, 7960, 9260, 9950, 11575, 18520, 19900, 23150, 39800, 46300, 92137, 92600, 184274, 368548, 460685, 737096, 921370, 1842740, 2303425, 3685480, 4606850, 9213700, 18427400]

約数ペア:

[(1, 18427400), (2, 9213700), (4, 4606850), (5, 3685480), (8, 2303425), (10, 1842740), (20, 921370), (25, 737096), (40, 460685), (50, 368548), (100, 184274), (199, 92600), (200, 92137), (398, 46300), (463, 39800), (796, 23150), (926, 19900), (995, 18520), (1592, 11575), (1852, 9950), (1990, 9260), (2315, 7960), (3704, 4975), (3980, 4630)]