The factors of the number 1,284,192 are: 1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 49, 52, 56, 63, 72, 78, 84, 91, 96, 98, 104, 112, 117, 126, 144, 147, 156, 168, 182, 196, 208, 224, 234, 252, 273, 288, 294, 312, 336, 343, 364, 392, 416, 441, 468, 504, 546, 588, 624, 637, 672, 686, 728, 784, 819, 882, 936, 1008, 1029, 1092, 1176, 1248, 1274, 1372, 1456, 1568, 1638, 1764, 1872, 1911, 2016, 2058, 2184, 2352, 2548, 2744, 2912, 3087, 3276, 3528, 3744, 3822, 4116, 4368, 4459, 4704, 5096, 5488, 5733, 6174, 6552, 7056, 7644, 8232, 8736, 8918, 10192, 10976, 11466, 12348, 13104, 13377, 14112, 15288, 16464, 17836, 20384, 22932, 24696, 26208, 26754, 30576, 32928, 35672, 40131, 45864, 49392, 53508, 61152, 71344, 80262, 91728, 98784, 107016, 142688, 160524, 183456, 214032, 321048, 428064, 642096, 1284192.
If you add them up, you will get the total of 4,586,400.