18886000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 160

約数和(自身を含む): 55710720

約数和(自身を除く): 36824720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 25, 28, 35, 38, 40, 50, 56, 70, 71, 76, 80, 95, 100, 112, 125, 133, 140, 142, 152, 175, 190, 200, 250, 266, 280, 284, 304, 350, 355, 380, 400, 475, 497, 500, 532, 560, 568, 665, 700, 710, 760, 875, 950, 994, 1000, 1064, 1136, 1330, 1349, 1400, 1420, 1520, 1750, 1775, 1900, 1988, 2000, 2128, 2375, 2485, 2660, 2698, 2800, 2840, 3325, 3500, 3550, 3800, 3976, 4750, 4970, 5320, 5396, 5680, 6650, 6745, 7000, 7100, 7600, 7952, 8875, 9443, 9500, 9940, 10640, 10792, 12425, 13300, 13490, 14000, 14200, 16625, 17750, 18886, 19000, 19880, 21584, 24850, 26600, 26980, 28400, 33250, 33725, 35500, 37772, 38000, 39760, 47215, 49700, 53200, 53960, 62125, 66500, 67450, 71000, 75544, 94430, 99400, 107920, 124250, 133000, 134900, 142000, 151088, 168625, 188860, 198800, 236075, 248500, 266000, 269800, 337250, 377720, 472150, 497000, 539600, 674500, 755440, 944300, 994000, 1180375, 1349000, 1888600, 2360750, 2698000, 3777200, 4721500, 9443000, 18886000]

約数ペア:

[(1, 18886000), (2, 9443000), (4, 4721500), (5, 3777200), (7, 2698000), (8, 2360750), (10, 1888600), (14, 1349000), (16, 1180375), (19, 994000), (20, 944300), (25, 755440), (28, 674500), (35, 539600), (38, 497000), (40, 472150), (50, 377720), (56, 337250), (70, 269800), (71, 266000), (76, 248500), (80, 236075), (95, 198800), (100, 188860), (112, 168625), (125, 151088), (133, 142000), (140, 134900), (142, 133000), (152, 124250), (175, 107920), (190, 99400), (200, 94430), (250, 75544), (266, 71000), (280, 67450), (284, 66500), (304, 62125), (350, 53960), (355, 53200), (380, 49700), (400, 47215), (475, 39760), (497, 38000), (500, 37772), (532, 35500), (560, 33725), (568, 33250), (665, 28400), (700, 26980), (710, 26600), (760, 24850), (875, 21584), (950, 19880), (994, 19000), (1000, 18886), (1064, 17750), (1136, 16625), (1330, 14200), (1349, 14000), (1400, 13490), (1420, 13300), (1520, 12425), (1750, 10792), (1775, 10640), (1900, 9940), (1988, 9500), (2000, 9443), (2128, 8875), (2375, 7952), (2485, 7600), (2660, 7100), (2698, 7000), (2800, 6745), (2840, 6650), (3325, 5680), (3500, 5396), (3550, 5320), (3800, 4970), (3976, 4750)]