217196560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1949}}^1$

素因数の和:2168

約数の個数: 80

約数和(自身を含む): 580320000

約数和(自身を除く): 363123440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 199, 280, 398, 560, 796, 995, 1393, 1592, 1949, 1990, 2786, 3184, 3898, 3980, 5572, 6965, 7796, 7960, 9745, 11144, 13643, 13930, 15592, 15920, 19490, 22288, 27286, 27860, 31184, 38980, 54572, 55720, 68215, 77960, 109144, 111440, 136430, 155920, 218288, 272860, 387851, 545720, 775702, 1091440, 1551404, 1939255, 2714957, 3102808, 3878510, 5429914, 6205616, 7757020, 10859828, 13574785, 15514040, 21719656, 27149570, 31028080, 43439312, 54299140, 108598280, 217196560]

約数ペア:

[(1, 217196560), (2, 108598280), (4, 54299140), (5, 43439312), (7, 31028080), (8, 27149570), (10, 21719656), (14, 15514040), (16, 13574785), (20, 10859828), (28, 7757020), (35, 6205616), (40, 5429914), (56, 3878510), (70, 3102808), (80, 2714957), (112, 1939255), (140, 1551404), (199, 1091440), (280, 775702), (398, 545720), (560, 387851), (796, 272860), (995, 218288), (1393, 155920), (1592, 136430), (1949, 111440), (1990, 109144), (2786, 77960), (3184, 68215), (3898, 55720), (3980, 54572), (5572, 38980), (6965, 31184), (7796, 27860), (7960, 27286), (9745, 22288), (11144, 19490), (13643, 15920), (13930, 15592)]