The factors of the number 28,704,636 are: 1, 2, 3, 4, 6, 9, 12, 17, 18, 31, 34, 36, 51, 62, 68, 89, 93, 102, 124, 153, 178, 186, 204, 267, 279, 289, 306, 356, 372, 527, 534, 558, 578, 612, 801, 867, 1054, 1068, 1116, 1156, 1513, 1581, 1602, 1734, 2108, 2601, 2759, 3026, 3162, 3204, 3468, 4539, 4743, 5202, 5518, 6052, 6324, 8277, 8959, 9078, 9486, 10404, 11036, 13617, 16554, 17918, 18156, 18972, 24831, 25721, 26877, 27234, 33108, 35836, 46903, 49662, 51442, 53754, 54468, 77163, 80631, 93806, 99324, 102884, 107508, 140709, 154326, 161262, 187612, 231489, 281418, 308652, 322524, 422127, 462978, 562836, 797351, 844254, 925956, 1594702, 1688508, 2392053, 3189404, 4784106, 7176159, 9568212, 14352318, 28704636.
If you add them up, you will get the total of 80,458,560.