Mathematical Sets

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Can you name the following mathematical sets given the defining property of each element in that set?

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Property:Mathematical Set:
Any real number which cannot be expressed as a ratio of two integers.
Any positive real number expressed as a fraction of 100.
Any positive integer equal to the sum of its positive divisors excluding the number itself.
Any positive integer that is divisible only by 1 and itself.
Any number which is the sum of the previous two numbers in the series beginning: 0,1...
Any number which has two constituent parts - a real part and an imaginary part.
Any integer which is not evenly divisible by 2.
The product of n(n-1)(n-2)(n-3)...(n-(n-1)), where n is any positive integer.
The product of any integer n, raised to the power of 2.
Any number which is the sum of the previous two numbers in the series beginning: 2,1...
Any positive integer (although some people also include 0 as an element of this set).
Any real number less than 0.
Any number which is equal to n+(n-1)+(n-2)+...+(n-(n-1)), where n is any positive integer.

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