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Number Theory

# Number of Factors / Divisors

How many positive divisors does the number $$2^63^8$$ have?

How many factors does $$2500000$$ have?

Find the sum of all the positive divisors of 28.

How many positive integers less than or equal to $$500$$ have exactly $$3$$ positive divisors?

How many factors does the integer $$4^8\times6^7\times12^7$$ have?

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