From 87d2ab997d66db39707f7c658a7dd19198ee9d60 Mon Sep 17 00:00:00 2001
From: Correl Roush <correl@gmail.com>
Date: Wed, 28 Apr 2010 01:40:51 +0000
Subject: [PATCH] Problem 023. Very slow, but works. Should look into speeding
 this up somehow.

git-svn-id: file:///srv/svn/euler@53 e5f4c3ec-3c0c-11df-b522-21efaa4426b5
---
 e023.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 e023.py

diff --git a/e023.py b/e023.py
new file mode 100644
index 0000000..3ea4ae4
--- /dev/null
+++ b/e023.py
@@ -0,0 +1,20 @@
+from e021 import proper_divisors
+
+abundant = []
+total = 1
+
+i = 2
+while i < 28123:
+    s = sum(proper_divisors(i))
+    if s > i:
+        abundant.append(i)
+    summed = False
+    for a in abundant:
+        if i - a in abundant:
+            summed = True
+            break
+    if not summed:
+        total = total + i
+    i = i + 1
+
+print 'Total:', total