The factors of the number 5,811,520 are: 1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 127, 130, 143, 160, 176, 208, 220, 254, 260, 286, 320, 352, 416, 440, 508, 520, 572, 635, 704, 715, 832, 880, 1016, 1040, 1144, 1270, 1397, 1430, 1651, 1760, 2032, 2080, 2288, 2540, 2794, 2860, 3302, 3520, 4064, 4160, 4576, 5080, 5588, 5720, 6604, 6985, 8128, 8255, 9152, 10160, 11176, 11440, 13208, 13970, 16510, 18161, 20320, 22352, 22880, 26416, 27940, 33020, 36322, 40640, 44704, 45760, 52832, 55880, 66040, 72644, 89408, 90805, 105664, 111760, 132080, 145288, 181610, 223520, 264160, 290576, 363220, 447040, 528320, 581152, 726440, 1162304, 1452880, 2905760, 5811520.
If you add them up, you will get the total of 16,386,048.