Buggy python submission (verdict: Time Limit Exceeded):
#!/usr/bin/python3
# import bisect
# from collections import Counter, deque, OrderedDict, defaultdict
# from copy import copy, deepcopy # pythonのみ．copyは1次元，deepcopyは多次元．
# from decimal import Decimal, ROUND_HALF_UP, ROUND_HALF_EVEN
# from functools import reduce
# from heapq import heapify, heappop, heappush
# from itertools import accumulate, permutations, combinations, combinations_with_replacement, groupby, product
# import math
# import numpy as np  # Pythonのみ！
# from operator import xor
# import re
# from scipy.sparse.csgraph import connected_components  # Pythonのみ！
# ↑cf.  https://note.nkmk.me/python-scipy-connected-components/
# from scipy.sparse import csr_matrix
# import statistics # Pythonのみ
# import string
import sys
sys.setrecursionlimit(10 ** 5 + 10)
def input(): return sys.stdin.readline().strip()

def resolve():
    MOD=10**9+7
    class ModInt:
        def __init__(self, x):
            self.x = x % MOD

        def __str__(self):
            return str(self.x)

        __repr__ = __str__

        def __add__(self, other):
            return (
                ModInt(self.x + other.x) if isinstance(other, ModInt) else
                ModInt(self.x + other)
            )

        def __sub__(self, other):
            return (
                ModInt(self.x - other.x) if isinstance(other, ModInt) else
                ModInt(self.x - other)
            )

        def __mul__(self, other):
            return (
                ModInt(self.x * other.x) if isinstance(other, ModInt) else
                ModInt(self.x * other)
            )

        def __truediv__(self, other):
            return (
                ModInt(
                    self.x * pow(other.x, MOD - 2, MOD)
                ) if isinstance(other, ModInt) else
                ModInt(self.x * pow(other, MOD - 2, MOD))
            )

        def __pow__(self, other):
            return (
                ModInt(pow(self.x, other.x, MOD)) if isinstance(other, ModInt) else
                ModInt(pow(self.x, other, MOD))
            )

        __radd__ = __add__

        def __rsub__(self, other):
            return (
                ModInt(other.x - self.x) if isinstance(other, ModInt) else
                ModInt(other - self.x)
            )

        __rmul__ = __mul__

        def __rtruediv__(self, other):
            return (
                ModInt(
                    other.x * pow(self.x, MOD - 2, MOD)
                ) if isinstance(other, ModInt) else
                ModInt(other * pow(self.x, MOD - 2, MOD))
            )

        def __rpow__(self, other):
            return (
                ModInt(pow(other.x, self.x, MOD)) if isinstance(other, ModInt) else
                ModInt(pow(other, self.x, MOD))
            )
    
    n=int(input())
    A=list(map(int,input().split()))

    from functools import reduce
    from math import gcd
    
    def lcm(A, B):
        return A * B // gcd(A, B)
    
    
    # リストを引数にとる
    val=reduce(lcm, A)
    ans=ModInt(0)
    for i in A:
        ans+=val//i
    print(ans)
    


    
resolve()

Fixed submission:
#!/usr/bin/python3
# import bisect
# from collections import Counter, deque, OrderedDict, defaultdict
# from copy import copy, deepcopy # pythonのみ．copyは1次元，deepcopyは多次元．
# from decimal import Decimal, ROUND_HALF_UP, ROUND_HALF_EVEN
# from functools import reduce
# from heapq import heapify, heappop, heappush
# from itertools import accumulate, permutations, combinations, combinations_with_replacement, groupby, product
# import math
# import numpy as np  # Pythonのみ！
# from operator import xor
# import re
# from scipy.sparse.csgraph import connected_components  # Pythonのみ！
# ↑cf.  https://note.nkmk.me/python-scipy-connected-components/
# from scipy.sparse import csr_matrix
# import statistics # Pythonのみ
# import string
import sys
sys.setrecursionlimit(10 ** 5 + 10)
def input(): return sys.stdin.readline().strip()

def resolve():
    
    n=int(input())
    A=list(map(int,input().split()))

    from functools import reduce
    from math import gcd
    
    def lcm(A, B):
        return A * B // gcd(A, B)
    
    
    # リストを引数にとる
    val=reduce(lcm, A)
    ans=0
    MOD=10**9+7
    for i in A:
        ans+=val*pow(i,MOD-2,MOD)%MOD
        ans%=MOD
    print(ans)

    


    
resolve()

Buggy python submission (verdict: Time Limit Exceeded):
#!/usr/bin/python3
# import bisect
# from collections import Counter, deque, OrderedDict, defaultdict
# from copy import copy, deepcopy # pythonのみ．copyは1次元，deepcopyは多次元．
# from decimal import Decimal, ROUND_HALF_UP, ROUND_HALF_EVEN
# from functools import reduce
# from heapq import heapify, heappop, heappush
# from itertools import accumulate, permutations, combinations, combinations_with_replacement, groupby, product
# import math
# import numpy as np  # Pythonのみ！
# from operator import xor
# import re
# from scipy.sparse.csgraph import connected_components  # Pythonのみ！
# ↑cf.  https://note.nkmk.me/python-scipy-connected-components/
# from scipy.sparse import csr_matrix
# import statistics # Pythonのみ
# import string
import sys
sys.setrecursionlimit(10 ** 5 + 10)
def input(): return sys.stdin.readline().strip()

def resolve():
    
    n=int(input())
    A=list(map(int,input().split()))

    from functools import reduce
    from math import gcd
    
    def lcm(A, B):
        return A * B // gcd(A, B)
    
    
    # リストを引数にとる
    val=reduce(lcm, A)
    ans=0
    MOD=10**9+7
    for i in A:
        ans+=val//i
        ans%=MOD
    print(ans%MOD)
    
resolve()

Fixed submission:
#!/usr/bin/python3
# import bisect
# from collections import Counter, deque, OrderedDict, defaultdict
# from copy import copy, deepcopy # pythonのみ．copyは1次元，deepcopyは多次元．
# from decimal import Decimal, ROUND_HALF_UP, ROUND_HALF_EVEN
# from functools import reduce
# from heapq import heapify, heappop, heappush
# from itertools import accumulate, permutations, combinations, combinations_with_replacement, groupby, product
# import math
# import numpy as np  # Pythonのみ！
# from operator import xor
# import re
# from scipy.sparse.csgraph import connected_components  # Pythonのみ！
# ↑cf.  https://note.nkmk.me/python-scipy-connected-components/
# from scipy.sparse import csr_matrix
# import statistics # Pythonのみ
# import string
import sys
sys.setrecursionlimit(10 ** 5 + 10)
def input(): return sys.stdin.readline().strip()

def resolve():
    
    n=int(input())
    A=list(map(int,input().split()))

    from functools import reduce
    from math import gcd
    
    def lcm(A, B):
        return A * B // gcd(A, B)
    
    
    # リストを引数にとる
    val=reduce(lcm, A)
    ans=0
    MOD=10**9+7
    for i in A:
        ans+=val*pow(i,MOD-2,MOD)%MOD
        ans%=MOD
    print(ans)

    


    
resolve()

Buggy python submission (verdict: Time Limit Exceeded):
#!/usr/bin/python3
# import bisect
# from collections import Counter, deque, OrderedDict, defaultdict
# from copy import copy, deepcopy # pythonのみ．copyは1次元，deepcopyは多次元．
# from decimal import Decimal, ROUND_HALF_UP, ROUND_HALF_EVEN
# from functools import reduce
# from heapq import heapify, heappop, heappush
# from itertools import accumulate, permutations, combinations, combinations_with_replacement, groupby, product
# import math
# import numpy as np  # Pythonのみ！
# from operator import xor
# import re
# from scipy.sparse.csgraph import connected_components  # Pythonのみ！
# ↑cf.  https://note.nkmk.me/python-scipy-connected-components/
# from scipy.sparse import csr_matrix
# import statistics # Pythonのみ
# import string
import sys
sys.setrecursionlimit(10 ** 5 + 10)
def input(): return sys.stdin.readline().strip()

def resolve():
    
    n=int(input())
    A=list(map(int,input().split()))

    from functools import reduce
    from math import gcd
    
    def lcm(A, B):
        return A * B // gcd(A, B)
    
    
    # リストを引数にとる
    val=reduce(lcm, A)
    ans=0
    MOD=10**9+7
    for i in A:
        ans+=val//i
        ans%=MOD
    print(ans%MOD)
    
resolve()

Fixed submission:
#!/usr/bin/python3
# import bisect
# from collections import Counter, deque, OrderedDict, defaultdict
# from copy import copy, deepcopy # pythonのみ．copyは1次元，deepcopyは多次元．
# from decimal import Decimal, ROUND_HALF_UP, ROUND_HALF_EVEN
# from functools import reduce
# from heapq import heapify, heappop, heappush
# from itertools import accumulate, permutations, combinations, combinations_with_replacement, groupby, product
# import math
# import numpy as np  # Pythonのみ！
# from operator import xor
# import re
# from scipy.sparse.csgraph import connected_components  # Pythonのみ！
# ↑cf.  https://note.nkmk.me/python-scipy-connected-components/
# from scipy.sparse import csr_matrix
# import statistics # Pythonのみ
# import string
import sys
sys.setrecursionlimit(10 ** 5 + 10)
def input(): return sys.stdin.readline().strip()

def resolve():
    
    n=int(input())
    A=list(map(int,input().split()))

    from functools import reduce
    from math import gcd
    
    def lcm(A, B):
        return A * B // gcd(A, B)
    
    
    # リストを引数にとる
    val=reduce(lcm, A)
    ans=0
    MOD=10**9+7
    for i in A:
        ans+=val*pow(i,MOD-2,MOD)%MOD
        ans%=MOD
    print(ans)

    


    
resolve()