4378000

素因数分解:

$2^4\times 5^3\times {\mathrm{11}}^1\times {\mathrm{199}}^1$

素因数の和:233

約数の個数: 80

約数和(自身を含む): 11606400

約数和(自身を除く): 7228400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 125, 176, 199, 200, 220, 250, 275, 398, 400, 440, 500, 550, 796, 880, 995, 1000, 1100, 1375, 1592, 1990, 2000, 2189, 2200, 2750, 3184, 3980, 4378, 4400, 4975, 5500, 7960, 8756, 9950, 10945, 11000, 15920, 17512, 19900, 21890, 22000, 24875, 35024, 39800, 43780, 49750, 54725, 79600, 87560, 99500, 109450, 175120, 199000, 218900, 273625, 398000, 437800, 547250, 875600, 1094500, 2189000, 4378000]

約数ペア:

[(1, 4378000), (2, 2189000), (4, 1094500), (5, 875600), (8, 547250), (10, 437800), (11, 398000), (16, 273625), (20, 218900), (22, 199000), (25, 175120), (40, 109450), (44, 99500), (50, 87560), (55, 79600), (80, 54725), (88, 49750), (100, 43780), (110, 39800), (125, 35024), (176, 24875), (199, 22000), (200, 21890), (220, 19900), (250, 17512), (275, 15920), (398, 11000), (400, 10945), (440, 9950), (500, 8756), (550, 7960), (796, 5500), (880, 4975), (995, 4400), (1000, 4378), (1100, 3980), (1375, 3184), (1592, 2750), (1990, 2200), (2000, 2189)]