# Solution Exercise 61: python algorithm which determines the dictionary whose values ​​are the lists of the divisors of the keys

Sep 30, 2021

#### Exercice 61

Write a program in Python that asks the user to enter five integers of their choice and return them a dictionary whose keys are the entered numbers and whose values are the lists of the divisors of the entered numbers. Example if the user enters the numbers: 14, 7, 8, 6, 13 the program returns the dictionary:

``d = {14: [1, 2, 7, 14], 7: [1,7], 8: [1, 2, 4, 8], 6: [1,3,6], 13: [1, 13]}``

#### Solution

``# function which determines the list of divisors of an integerdef listDiv (n):    # initialization of the list of divisors of n    l = []    # iterate over integers 1, 2, 3, ..., n    for i in range (1, n + 1):        # if i is a divisor of n we add it to the list        if n%i == 0:            l.append (i)    return l# retrieving numbers typed in a python listtyped_number = []for i in range (0, 5):    n = int (input ("Type an integer"))    typed_number.append (n)    # dictionary creationd = dict ({})for n in typed_number:    d [n] = listDiv (n)    print(d)# the output is: {14: [1, 2, 7, 14], 7: [1, 7], 8: [1, 2, 4, 8], 6: [1, 2, 3, 6], 13: [1, 13]}``
Younes Derfoufi
my-courses.net