What is the sum of the divisors of 484 that are perfect squares?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 610.
We can factories 484 as,
⇒ 484 = 22 × 112
Factors of 484 which are perfect squares 1, 4, 121, 484
The sum of the factors = 1 + 4 + 121 + 484 = 610