The factors of the number 772,800 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 25, 28, 30, 32, 35, 40, 42, 46, 48, 50, 56, 60, 64, 69, 70, 75, 80, 84, 92, 96, 100, 105, 112, 115, 120, 138, 140, 150, 160, 161, 168, 175, 184, 192, 200, 210, 224, 230, 240, 276, 280, 300, 320, 322, 336, 345, 350, 368, 400, 420, 448, 460, 480, 483, 525, 552, 560, 575, 600, 644, 672, 690, 700, 736, 800, 805, 840, 920, 960, 966, 1050, 1104, 1120, 1150, 1200, 1288, 1344, 1380, 1400, 1472, 1600, 1610, 1680, 1725, 1840, 1932, 2100, 2208, 2240, 2300, 2400, 2415, 2576, 2760, 2800, 3220, 3360, 3450, 3680, 3864, 4025, 4200, 4416, 4600, 4800, 4830, 5152, 5520, 5600, 6440, 6720, 6900, 7360, 7728, 8050, 8400, 9200, 9660, 10304, 11040, 11200, 12075, 12880, 13800, 15456, 16100, 16800, 18400, 19320, 22080, 24150, 25760, 27600, 30912, 32200, 33600, 36800, 38640, 48300, 51520, 55200, 64400, 77280, 96600, 110400, 128800, 154560, 193200, 257600, 386400, 772800.
If you add them up, you will get the total of 772,802. Now subtract 772,800 to get 2,250,816