The factors of the number 1,324,224 are: 1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 19, 22, 24, 32, 33, 36, 38, 44, 48, 57, 64, 66, 72, 76, 88, 96, 99, 114, 121, 132, 144, 152, 171, 176, 192, 198, 209, 228, 242, 264, 288, 304, 342, 352, 363, 396, 418, 456, 484, 528, 576, 608, 627, 684, 704, 726, 792, 836, 912, 968, 1056, 1089, 1216, 1254, 1368, 1452, 1584, 1672, 1824, 1881, 1936, 2112, 2178, 2299, 2508, 2736, 2904, 3168, 3344, 3648, 3762, 3872, 4356, 4598, 5016, 5472, 5808, 6336, 6688, 6897, 7524, 7744, 8712, 9196, 10032, 10944, 11616, 13376, 13794, 15048, 17424, 18392, 20064, 20691, 23232, 27588, 30096, 34848, 36784, 40128, 41382, 55176, 60192, 69696, 73568, 82764, 110352, 120384, 147136, 165528, 220704, 331056, 441408, 662112, 1324224.
If you add them up, you will get the total of 4,391,660.