The factors of the number 520,040,235 are: 1, 3, 5, 11, 13, 15, 23, 33, 39, 55, 65, 69, 83, 115, 127, 143, 165, 195, 249, 253, 299, 345, 381, 415, 429, 635, 715, 759, 897, 913, 1079, 1245, 1265, 1397, 1495, 1651, 1905, 1909, 2145, 2739, 2921, 3237, 3289, 3795, 4191, 4485, 4565, 4953, 5395, 5727, 6985, 8255, 8763, 9545, 9867, 10541, 11869, 13695, 14605, 16185, 16445, 18161, 20955, 20999, 24765, 24817, 28635, 31623, 32131, 35607, 37973, 43815, 49335, 52705, 54483, 59345, 62997, 74451, 90805, 96393, 104995, 113919, 115951, 124085, 137033, 158115, 160655, 178035, 189865, 242443, 272415, 272987, 314985, 347853, 372255, 411099, 417703, 481965, 569595, 579755, 685165, 727329, 818961, 1212215, 1253109, 1364935, 1507363, 1739265, 2055495, 2088515, 2666873, 3151759, 3636645, 4094805, 4522089, 6265545, 7536815, 8000619, 9455277, 13334365, 15758795, 22610445, 34669349, 40003095, 47276385, 104008047, 173346745, 520040235.
If you add them up, you will get the total of 520,040,755. Now subtract 520,040,235 to get 520,409,301