foo.py

number = 1

#creates the nth triangle number
def triangle(number):
    return (number * (number + 1)) / 2

#finds factors for triangle numbers
def factors(number):
    num_factors = 0
    for i in xrange(1, int(number**0.5) + 1):
        if number % i == 0:
            num_factors += 2
    return num_factors

num_factors = 0

while num_factors < 500:
    tri = triangle(number)
    num_factors = factors(tri)
    print tri
    print num_factors
    print number
    number += 1

plot.py

import pylab as plt

number = 1

#creates the nth triangle number
def triangle(number):
    return (number * (number + 1)) / 2

#finds factors for triangle numbers
def factors(number):
    num_factors = 0
    for i in xrange(1, int(number**0.5) + 1):
        if number % i == 0:
            num_factors += 2
    return num_factors

num_factors = 0

f = []

try:
    while num_factors < 500:
        tri = triangle(number)
        f.append(factors(triangle(number)))
        number += 1
except:
    plt.plot(f)
    plt.show()