g1301_1400.s1390_four_divisors

Class Solution

java.lang.Object

g1301_1400.s1390_four_divisors.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 Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
int	sumFourDivisors(int[] nums)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Solution

public Solution()

Method Detail

sumFourDivisors

public int sumFourDivisors(int[] nums)