static void Main(string[] args)
        {
            Console.WriteLine("输入一个数字");
            int number = Convert.ToInt32(Console.ReadLine());
            int j;
            List<int> a = new List<int>();
            for (int i = 1; i < number; i++)
            {
                if (number % i == 0)
                {
                    j = number / i;
                    a.Add(Math.Abs(j - i));
                }
            }
            int minnumber = a.Min();  //这个是差值
            double number1 = 0;              //第一个乘数
            double number2 = 0;              //第二个乘数
            double dt = minnumber * minnumber + 4 * number;
            if (dt < 0)
            {
                Console.WriteLine("无解");

            }
            else if (dt == 0)
            {
                number1 = Math.Abs(-minnumber / 2 * number);
                Console.WriteLine("两个乘数为{0}和{1}", number1, number1);

            }
            else
            {
                number1 = Math.Abs((-minnumber + Math.Sqrt(dt)) / 2 );
                number2 = Math.Abs((-minnumber - Math.Sqrt(dt)) / 2 );
                Console.WriteLine("两个乘数为{0}和{1}", number1, number2);

            }
            Console.ReadKey();
        }