The factors of the number 252,051,540 are: 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 59, 60, 65, 78, 118, 130, 156, 177, 195, 236, 260, 295, 354, 390, 590, 708, 767, 780, 885, 1180, 1534, 1770, 2301, 3068, 3540, 3835, 4602, 5477, 7670, 9204, 10954, 11505, 15340, 16431, 21908, 23010, 27385, 32862, 46020, 54770, 65724, 71201, 82155, 109540, 142402, 164310, 213603, 284804, 323143, 328620, 356005, 427206, 646286, 712010, 854412, 969429, 1068015, 1292572, 1424020, 1615715, 1938858, 2136030, 3231430, 3877716, 4200859, 4272060, 4847145, 6462860, 8401718, 9694290, 12602577, 16803436, 19388580, 21004295, 25205154, 42008590, 50410308, 63012885, 84017180, 126025770, 252051540.
If you add them up, you will get the total of 252,052,061. Now subtract 252,051,540 to get 521,003,820