20510930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{937}}^1$

素因数の和:1154

約数の個数: 32

約数和(自身を含む): 40521600

約数和(自身を除く): 20010670

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 937, 995, 1874, 1990, 2189, 4378, 4685, 9370, 10307, 10945, 20614, 21890, 51535, 103070, 186463, 372926, 932315, 1864630, 2051093, 4102186, 10255465, 20510930]

約数ペア:

[(1, 20510930), (2, 10255465), (5, 4102186), (10, 2051093), (11, 1864630), (22, 932315), (55, 372926), (110, 186463), (199, 103070), (398, 51535), (937, 21890), (995, 20614), (1874, 10945), (1990, 10307), (2189, 9370), (4378, 4685)]