2189000

素因数分解:

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

素因数の和:231

約数の個数: 64

約数和(自身を含む): 5616000

約数和(自身を除く): 3427000

約数列:

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

約数ペア:

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