Contents

def divisor_generator(n):
    ''' Returns an unordered list of divisors for n (1 < n). '''
    for i in range(2, int(n ** 0.5) + 1):
        if n % i == 0:
            yield i
            if i * i != n:
                yield n // i


def is_perfect(n):
    ''' A perfect number equals the sum of its positive divisors. '''
    return sum(divisor_generator(n)) + 1 == n

Version data entries

283 entries across 283 versions & 1 rubygems

Version	Path
trackler-2.2.1.65	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.64	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.63	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.62	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.61	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.60	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.59	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.58	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.57	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.56	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.55	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.54	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.53	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.52	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.51	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.50	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.49	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.48	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.47	tracks/python/exercises/perfect-numbers/example.py
trackler-2.2.1.46	tracks/python/exercises/perfect-numbers/example.py