How many positive divisors does 75600 have? How many odd divisors? Point out the ideas, thank you!
75600=2^4 *3^3*5^2*7
Positive divisor = (4 + 1) * (3 + 1) * (2 + 1) * (1 + 1) = 120
Odd divisor = (3 + 1) * (2 + 1) * (1 + 1) = 24
75600=2^4 *3^3*5^2*7
Positive divisor = (4 + 1) * (3 + 1) * (2 + 1) * (1 + 1) = 120
Odd divisor = (3 + 1) * (2 + 1) * (1 + 1) = 24