The factors of the number 255,255,240 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 59, 60, 62, 93, 118, 120, 124, 155, 177, 186, 236, 248, 295, 310, 354, 372, 465, 472, 590, 620, 708, 744, 885, 930, 1163, 1180, 1240, 1416, 1770, 1829, 1860, 2326, 2360, 3489, 3540, 3658, 3720, 4652, 5487, 5815, 6978, 7080, 7316, 9145, 9304, 10974, 11630, 13956, 14632, 17445, 18290, 21948, 23260, 27435, 27912, 34890, 36053, 36580, 43896, 46520, 54870, 68617, 69780, 72106, 73160, 108159, 109740, 137234, 139560, 144212, 180265, 205851, 216318, 219480, 274468, 288424, 343085, 360530, 411702, 432636, 540795, 548936, 686170, 721060, 823404, 865272, 1029255, 1081590, 1372340, 1442120, 1646808, 2058510, 2127127, 2163180, 2744680, 4117020, 4254254, 4326360, 6381381, 8234040, 8508508, 10635635, 12762762, 17017016, 21271270, 25525524, 31906905, 42542540, 51051048, 63813810, 85085080, 127627620, 255255240.
If you add them up, you will get the total of 255,255,789. Now subtract 255,255,240 to get 549,301,560