SAT Math Practice Question #25280 - SATify | SATify

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SAT Math Practice Question #25280 - SATify | SATify

#25280

number theory

divisors

Totient Function

medium

90 sec

Let $N = 6 \cdot 15 \cdot 35$ . What is the ratio of the sum of the odd divisors of $N$ to the sum of the even divisors of $N$ ?

A.

1 : 2

B.

1 : 3

C.

1 : 4

D.

1 : 5

E.

1 : 6