The factors of the number 261,165,120 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 163, 192, 240, 320, 326, 480, 489, 652, 815, 960, 978, 1304, 1630, 1669, 1956, 2445, 2608, 3260, 3338, 3912, 4890, 5007, 5216, 6520, 6676, 7824, 8345, 9780, 10014, 10432, 13040, 13352, 15648, 16690, 19560, 20028, 25035, 26080, 26704, 31296, 33380, 39120, 40056, 50070, 52160, 53408, 66760, 78240, 80112, 100140, 106816, 133520, 156480, 160224, 200280, 267040, 272047, 320448, 400560, 534080, 544094, 801120, 816141, 1088188, 1360235, 1602240, 1632282, 2176376, 2720470, 3264564, 4080705, 4352752, 5440940, 6529128, 8161410, 8705504, 10881880, 13058256, 16322820, 17411008, 21763760, 26116512, 32645640, 43527520, 52233024, 65291280, 87055040, 130582560, 261165120.
If you add them up, you will get the total of 834,786,240.