project_euler.problem_012.sol1 ============================== .. py:module:: project_euler.problem_012.sol1 .. autoapi-nested-parse:: Highly divisible triangular numbers Problem 12 The sequence of triangle numbers is generated by adding the natural numbers. So the 7th triangle number would be 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28. The first ten terms would be: 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, ... Let us list the factors of the first seven triangle numbers: 1: 1 3: 1,3 6: 1,2,3,6 10: 1,2,5,10 15: 1,3,5,15 21: 1,3,7,21 28: 1,2,4,7,14,28 We can see that 28 is the first triangle number to have over five divisors. What is the value of the first triangle number to have over five hundred divisors? Functions --------- .. autoapisummary:: project_euler.problem_012.sol1.count_divisors project_euler.problem_012.sol1.solution Module Contents --------------- .. py:function:: count_divisors(n) .. py:function:: solution() Returns the value of the first triangle number to have over five hundred divisors. >>> solution() 76576500