The factors of the number 6,494,400 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 25, 30, 32, 33, 36, 40, 41, 44, 45, 48, 50, 55, 60, 64, 66, 72, 75, 80, 82, 88, 90, 96, 99, 100, 110, 120, 123, 132, 144, 150, 160, 164, 165, 176, 180, 192, 198, 200, 205, 220, 225, 240, 246, 264, 275, 288, 300, 320, 328, 330, 352, 360, 369, 396, 400, 410, 440, 450, 451, 480, 492, 495, 528, 550, 576, 600, 615, 656, 660, 704, 720, 738, 792, 800, 820, 825, 880, 900, 902, 960, 984, 990, 1025, 1056, 1100, 1200, 1230, 1312, 1320, 1353, 1440, 1476, 1584, 1600, 1640, 1650, 1760, 1800, 1804, 1845, 1968, 1980, 2050, 2112, 2200, 2255, 2400, 2460, 2475, 2624, 2640, 2706, 2880, 2952, 3075, 3168, 3280, 3300, 3520, 3600, 3608, 3690, 3936, 3960, 4059, 4100, 4400, 4510, 4800, 4920, 4950, 5280, 5412, 5904, 6150, 6336, 6560, 6600, 6765, 7200, 7216, 7380, 7872, 7920, 8118, 8200, 8800, 9020, 9225, 9840, 9900, 10560, 10824, 11275, 11808, 12300, 13120, 13200, 13530, 14400, 14432, 14760, 15840, 16236, 16400, 17600, 18040, 18450, 19680, 19800, 20295, 21648, 22550, 23616, 24600, 26400, 27060, 28864, 29520, 31680, 32472, 32800, 33825, 36080, 36900, 39360, 39600, 40590, 43296, 45100, 49200, 52800, 54120, 59040, 64944, 65600, 67650, 72160, 73800, 79200, 81180, 86592, 90200, 98400, 101475, 108240, 118080, 129888, 135300, 144320, 147600, 158400, 162360, 180400, 196800, 202950, 216480, 259776, 270600, 295200, 324720, 360800, 405900, 432960, 541200, 590400, 649440, 721600, 811800, 1082400, 1298880, 1623600, 2164800, 3247200, 6494400.
If you add them up, you will get the total of 25,795,224.