Question: 
Write a python function to find sum of inverse of divisors.


Model's Code:
def Sum_of_Inverse_Divisors(start, end):
    total = 0
    for i in range(start, end + 1):
        for j in range(1, i + 1):
            if i % j == 0:
                total += 1 / j
    return total



Sample Correct Code:
def Sum_of_Inverse_Divisors(N,Sum): 
    ans = float(Sum)*1.0 /float(N);  
    return round(ans,2); 


Asserts:
assert Sum_of_Inverse_Divisors(6,12) == 2
assert Sum_of_Inverse_Divisors(9,13) == 1.44
assert Sum_of_Inverse_Divisors(1,4) == 4


Tests:
Test 1 of 3: FAIL: AssertionError()

Test 851 of 974: 654/851 (76.85076380728555%): failed