PerfectNumbers.py

'''
"PerfectNumbers.py"
by Chris Clarke
13.12.2014
'''
def print_perfect():
    for n in range(1, 10000):
        sum_factors = 0 # reset
        output = "" # reset
        max = int(n/2) # highest factor of n is half of n
        for i in range(1, max+1):
            if n%i == 0: # i is a factor of n
                if (i==1): # first iteration of inner loop
                    output = str(n)+" = 1"
                else: # 2nd, etc
                    output += " + "+str(i)
                sum_factors += i

        if sum_factors==n: # ...it's perfect
            print output # print string

def main():
    print "The perfect numbers are"
    print_perfect()

main()