The factors of the number 1,088,472 are: 1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 19, 21, 22, 24, 28, 31, 33, 38, 42, 44, 56, 57, 62, 66, 76, 77, 84, 88, 93, 114, 124, 132, 133, 152, 154, 168, 186, 209, 217, 228, 231, 248, 264, 266, 308, 341, 372, 399, 418, 434, 456, 462, 532, 589, 616, 627, 651, 682, 744, 798, 836, 868, 924, 1023, 1064, 1178, 1254, 1302, 1364, 1463, 1596, 1672, 1736, 1767, 1848, 2046, 2356, 2387, 2508, 2604, 2728, 2926, 3192, 3534, 4092, 4123, 4389, 4712, 4774, 5016, 5208, 5852, 6479, 7068, 7161, 8184, 8246, 8778, 9548, 11704, 12369, 12958, 14136, 14322, 16492, 17556, 19096, 19437, 24738, 25916, 28644, 32984, 35112, 38874, 45353, 49476, 51832, 57288, 77748, 90706, 98952, 136059, 155496, 181412, 272118, 362824, 544236, 1088472.
If you add them up, you will get the total of 3,686,400.