199904000

素因数分解:

$2^8\times 5^3\times {\mathrm{6247}}^1$

素因数の和:6278

約数の個数: 72

約数和(自身を含む): 498065568

約数和(自身を除く): 298161568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 1000, 1280, 1600, 2000, 3200, 4000, 6247, 6400, 8000, 12494, 16000, 24988, 31235, 32000, 49976, 62470, 99952, 124940, 156175, 199904, 249880, 312350, 399808, 499760, 624700, 780875, 799616, 999520, 1249400, 1561750, 1599232, 1999040, 2498800, 3123500, 3998080, 4997600, 6247000, 7996160, 9995200, 12494000, 19990400, 24988000, 39980800, 49976000, 99952000, 199904000]

約数ペア:

[(1, 199904000), (2, 99952000), (4, 49976000), (5, 39980800), (8, 24988000), (10, 19990400), (16, 12494000), (20, 9995200), (25, 7996160), (32, 6247000), (40, 4997600), (50, 3998080), (64, 3123500), (80, 2498800), (100, 1999040), (125, 1599232), (128, 1561750), (160, 1249400), (200, 999520), (250, 799616), (256, 780875), (320, 624700), (400, 499760), (500, 399808), (640, 312350), (800, 249880), (1000, 199904), (1280, 156175), (1600, 124940), (2000, 99952), (3200, 62470), (4000, 49976), (6247, 32000), (6400, 31235), (8000, 24988), (12494, 16000)]