11995720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 29808000

約数和(自身を除く): 17812280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 137, 199, 220, 274, 398, 440, 548, 685, 796, 995, 1096, 1370, 1507, 1592, 1990, 2189, 2740, 3014, 3980, 4378, 5480, 6028, 7535, 7960, 8756, 10945, 12056, 15070, 17512, 21890, 27263, 30140, 43780, 54526, 60280, 87560, 109052, 136315, 218104, 272630, 299893, 545260, 599786, 1090520, 1199572, 1499465, 2399144, 2998930, 5997860, 11995720]

約数ペア:

[(1, 11995720), (2, 5997860), (4, 2998930), (5, 2399144), (8, 1499465), (10, 1199572), (11, 1090520), (20, 599786), (22, 545260), (40, 299893), (44, 272630), (55, 218104), (88, 136315), (110, 109052), (137, 87560), (199, 60280), (220, 54526), (274, 43780), (398, 30140), (440, 27263), (548, 21890), (685, 17512), (796, 15070), (995, 12056), (1096, 10945), (1370, 8756), (1507, 7960), (1592, 7535), (1990, 6028), (2189, 5480), (2740, 4378), (3014, 3980)]