Problem D: Repetitive Processing - How Many Divisors?

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Time Limit $1$ 秒/Second(s) Memory Limit $512$ 兆字节/Megabyte(s)
提交总数 $1302$ 正确数量 $682$
裁判形式 标准裁判/Standard Judge 我的状态 尚未尝试
难度 分类标签 STL

How Many Divisors? 

Write a program which reads three integers a, b and c, and prints the number of divisors of c between a and b.

Three integers a, b and c are given in a line separated by a single space.
Print the number of divisors in a line.
5 14 80
3

1 ≤ a, b, c ≤ 10000 

a ≤ b