The factors of the number 2,502,720 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 79, 80, 88, 90, 96, 99, 110, 120, 132, 144, 158, 160, 165, 176, 180, 192, 198, 220, 237, 240, 264, 288, 316, 320, 330, 352, 360, 395, 396, 440, 474, 480, 495, 528, 576, 632, 660, 704, 711, 720, 790, 792, 869, 880, 948, 960, 990, 1056, 1185, 1264, 1320, 1422, 1440, 1580, 1584, 1738, 1760, 1896, 1980, 2112, 2370, 2528, 2607, 2640, 2844, 2880, 3160, 3168, 3476, 3520, 3555, 3792, 3960, 4345, 4740, 5056, 5214, 5280, 5688, 6320, 6336, 6952, 7110, 7584, 7821, 7920, 8690, 9480, 10428, 10560, 11376, 12640, 13035, 13904, 14220, 15168, 15642, 15840, 17380, 18960, 20856, 22752, 25280, 26070, 27808, 28440, 31284, 31680, 34760, 37920, 39105, 41712, 45504, 52140, 55616, 56880, 62568, 69520, 75840, 78210, 83424, 104280, 113760, 125136, 139040, 156420, 166848, 208560, 227520, 250272, 278080, 312840, 417120, 500544, 625680, 834240, 1251360, 2502720.
If you add them up, you will get the total of 9,509,760.