The factors of the number 1,634,880 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 131, 156, 160, 192, 195, 208, 240, 260, 262, 312, 320, 390, 393, 416, 480, 520, 524, 624, 655, 780, 786, 832, 960, 1040, 1048, 1248, 1310, 1560, 1572, 1703, 1965, 2080, 2096, 2496, 2620, 3120, 3144, 3406, 3930, 4160, 4192, 5109, 5240, 6240, 6288, 6812, 7860, 8384, 8515, 10218, 10480, 12480, 12576, 13624, 15720, 17030, 20436, 20960, 25152, 25545, 27248, 31440, 34060, 40872, 41920, 51090, 54496, 62880, 68120, 81744, 102180, 108992, 125760, 136240, 163488, 204360, 272480, 326976, 408720, 544960, 817440, 1634880.
If you add them up, you will get the total of 1,634,883. Now subtract 1,634,880 to get 3,997,824