19952000

素因数分解:

$2^7\times 5^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:101

約数の個数: 128

約数和(自身を含む): 52509600

約数和(自身を除く): 32557600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 43, 50, 58, 64, 80, 86, 100, 116, 125, 128, 145, 160, 172, 200, 215, 232, 250, 290, 320, 344, 400, 430, 464, 500, 580, 640, 688, 725, 800, 860, 928, 1000, 1075, 1160, 1247, 1376, 1450, 1600, 1720, 1856, 2000, 2150, 2320, 2494, 2752, 2900, 3200, 3440, 3625, 3712, 4000, 4300, 4640, 4988, 5375, 5504, 5800, 6235, 6880, 7250, 8000, 8600, 9280, 9976, 10750, 11600, 12470, 13760, 14500, 16000, 17200, 18560, 19952, 21500, 23200, 24940, 27520, 29000, 31175, 34400, 39904, 43000, 46400, 49880, 58000, 62350, 68800, 79808, 86000, 92800, 99760, 116000, 124700, 137600, 155875, 159616, 172000, 199520, 232000, 249400, 311750, 344000, 399040, 464000, 498800, 623500, 688000, 798080, 997600, 1247000, 1995200, 2494000, 3990400, 4988000, 9976000, 19952000]

約数ペア:

[(1, 19952000), (2, 9976000), (4, 4988000), (5, 3990400), (8, 2494000), (10, 1995200), (16, 1247000), (20, 997600), (25, 798080), (29, 688000), (32, 623500), (40, 498800), (43, 464000), (50, 399040), (58, 344000), (64, 311750), (80, 249400), (86, 232000), (100, 199520), (116, 172000), (125, 159616), (128, 155875), (145, 137600), (160, 124700), (172, 116000), (200, 99760), (215, 92800), (232, 86000), (250, 79808), (290, 68800), (320, 62350), (344, 58000), (400, 49880), (430, 46400), (464, 43000), (500, 39904), (580, 34400), (640, 31175), (688, 29000), (725, 27520), (800, 24940), (860, 23200), (928, 21500), (1000, 19952), (1075, 18560), (1160, 17200), (1247, 16000), (1376, 14500), (1450, 13760), (1600, 12470), (1720, 11600), (1856, 10750), (2000, 9976), (2150, 9280), (2320, 8600), (2494, 8000), (2752, 7250), (2900, 6880), (3200, 6235), (3440, 5800), (3625, 5504), (3712, 5375), (4000, 4988), (4300, 4640)]