Perfect Number

 #完美數

# n = 28

for n in range(1,1001):

    a = []

    for i in range(1,n):

        if n%i==0:

            a.append(i)

    if sum(a)==n:

        print(n,':perfect number')

runfile('C:/Users/j945935/.spyder-py3/untitled1.py', wdir='C:/Users/j945935/.spyder-py3')

6 :perfect number

28 :perfect number

496 :perfect number