From 7b624de8e3e3637a07364f992c1d7e4185e4a872 Mon Sep 17 00:00:00 2001 From: Charles Date: Sun, 11 Aug 2019 18:42:52 +0200 Subject: initial commit --- python/21-amicable_numbers.py | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 python/21-amicable_numbers.py (limited to 'python/21-amicable_numbers.py') diff --git a/python/21-amicable_numbers.py b/python/21-amicable_numbers.py new file mode 100644 index 0000000..6f89986 --- /dev/null +++ b/python/21-amicable_numbers.py @@ -0,0 +1,13 @@ +from helper.numbers import proper_divisors + + +amicable_nums = [] +for a in range(1, 10_000): + if a in amicable_nums: + continue + + b = sum(proper_divisors(a)) + if a != b and sum(proper_divisors(b)) == a: + amicable_nums.extend([a, b]) + +print(sum(amicable_nums)) -- cgit