[가장 비싼 상품 구하기]
https://school.programmers.co.kr/learn/courses/30/lessons/131528
[작성한 코드]SELECT MAX(PRICE) MAX_PRICE FROM PRODUCT;
[약수의 합]
https://school.programmers.co.kr/learn/courses/30/lessons/12928
[작성한코드]class Solution { public int solution(int n) { int sum = 0; for (int i = 1; i <= n; i++) { if (n % i == 0) { sum += i; } } return sum; } }