added rest of the code

20/part1.py

@@ -0,0 +1,32 @@
+#!/usr/bin/python
+
+from math import  ceil, sqrt
+
+def get_present_for_house(houseNumber):
+    result = 0
+#    print "house: %d" % houseNumber
+    for x in range(int(sqrt(houseNumber))):
+        elf = x+1
+        if houseNumber % (elf) == 0:
+#            print "elf: %d, %d" % (elf, houseNumber/elf)
+            result += (elf)*10
+            if elf != houseNumber / elf:
+                result += (houseNumber / elf) * 10
+    return result
+
+
+def main():
+
+    input = 36000000
+    houseNumber = int(sqrt(input))
+    while True:
+        giftNumber = get_present_for_house(houseNumber)
+        print "house: %d, gifts: %d" % (houseNumber, giftNumber)
+        if giftNumber >= input:
+            break
+        houseNumber += 1
+    print houseNumber
+
+
+if __name__ == "__main__":
+    main()

20/part2.py

@@ -0,0 +1,32 @@
+#!/usr/bin/python
+
+from math import  ceil, sqrt
+
+def get_present_for_house(houseNumber, delivered, max):
+    result = 0
+    for x in range(int(sqrt(houseNumber))):
+        elf = x+1
+        if houseNumber % (elf) == 0:
+            if houseNumber <= elf*max:
+                result += (elf)*delivered
+            if houseNumber <= (houseNumber/elf)*max:
+                if elf != houseNumber / elf:
+                    result += (houseNumber/elf) * delivered
+    return result
+
+
+def main():
+
+    input = 36000000
+    houseNumber = int(sqrt(input))
+    while True:
+        giftNumber = get_present_for_house(houseNumber, 11, 50)
+        print "house: %d, gifts: %d" % (houseNumber, giftNumber)
+        if giftNumber >= input:
+            break
+        houseNumber += 1
+    print houseNumber
+
+
+if __name__ == "__main__":
+    main()