from sys import stdin

input = stdin.readline

n = int(input())
a = list(map(int, input().split()))
a.append(int(2e9))

Min = int(1e18)
Minx = -1


def lower_bound(lo, val):
    hi = n + 1
    while hi - lo > 1:
        mi = (lo + hi) // 2
        if a[mi] >= val:
            hi = mi
        else:
            lo = mi
    return hi


for x in range(1, n * 2 + 1):
    i = 0
    k = 0
    while i < n:
        i = lower_bound(i, (a[i] // x + 1) * x)
        k += 1
        if (x + 1) * k >= Min:
            k = -1
            break
    if k != -1 and (x + 1) * k < Min:
        Min = (x + 1) * k
        Minx = x
print(Minx)
print(Min)