Class Solution


  • public class Solution
    extends Object
    1390 - Four Divisors.

    Medium

    Given an integer array nums, return the sum of divisors of the integers in that array that have exactly four divisors. If there is no such integer in the array, return 0.

    Example 1:

    Input: nums = [21,4,7]

    Output: 32

    Explanation:

    21 has 4 divisors: 1, 3, 7, 21

    4 has 3 divisors: 1, 2, 4

    7 has 2 divisors: 1, 7

    The answer is the sum of divisors of 21 only.

    Example 2:

    Input: nums = [21,21]

    Output: 64

    Example 3:

    Input: nums = [1,2,3,4,5]

    Output: 0

    Constraints:

    • 1 <= nums.length <= 104
    • 1 <= nums[i] <= 105
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • sumFourDivisors

        public int sumFourDivisors​(int[] nums)