consecutive sum
Given an integer N, you have to find the number of ways you can express N as sum of consecutive integers. You have to use at least two integers.
For example, N = 15 has three solutions, (1+2+3+4+5), (4+5+6), (7+8).
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I think I remember that it is the number of odd divisors greater than 1. – turkeyhundt Mar 27 '15 at 15:07
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1See this post too: http://math.stackexchange.com/questions/1207077/number-of-ways-to-write-n-as-a-sum-of-consecutive-integers – MrSelberg Mar 27 '15 at 15:29
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@turkeyhundt, yes your solution is correct, I know the solution but How can I prove? what is the theory behind it? – Shakhawat Hossain Mar 27 '15 at 15:31