The factors of the number 1,706,400 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 72, 75, 79, 80, 90, 96, 100, 108, 120, 135, 144, 150, 158, 160, 180, 200, 216, 225, 237, 240, 270, 288, 300, 316, 360, 395, 400, 432, 450, 474, 480, 540, 600, 632, 675, 711, 720, 790, 800, 864, 900, 948, 1080, 1185, 1200, 1264, 1350, 1422, 1440, 1580, 1800, 1896, 1975, 2133, 2160, 2370, 2400, 2528, 2700, 2844, 3160, 3555, 3600, 3792, 3950, 4266, 4320, 4740, 5400, 5688, 5925, 6320, 7110, 7200, 7584, 7900, 8532, 9480, 10665, 10800, 11376, 11850, 12640, 14220, 15800, 17064, 17775, 18960, 21330, 21600, 22752, 23700, 28440, 31600, 34128, 35550, 37920, 42660, 47400, 53325, 56880, 63200, 68256, 71100, 85320, 94800, 106650, 113760, 142200, 170640, 189600, 213300, 284400, 341280, 426600, 568800, 853200, 1706400.
If you add them up, you will get the total of 6,249,600.