The factors of the number 1,071,360 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 64, 72, 80, 90, 93, 96, 108, 120, 124, 128, 135, 144, 155, 160, 180, 186, 192, 216, 240, 248, 256, 270, 279, 288, 310, 320, 360, 372, 384, 432, 465, 480, 496, 540, 558, 576, 620, 640, 720, 744, 768, 837, 864, 930, 960, 992, 1080, 1116, 1152, 1240, 1280, 1395, 1440, 1488, 1674, 1728, 1860, 1920, 1984, 2160, 2232, 2304, 2480, 2790, 2880, 2976, 3348, 3456, 3720, 3840, 3968, 4185, 4320, 4464, 4960, 5580, 5760, 5952, 6696, 6912, 7440, 7936, 8370, 8640, 8928, 9920, 11160, 11520, 11904, 13392, 14880, 16740, 17280, 17856, 19840, 22320, 23808, 26784, 29760, 33480, 34560, 35712, 39680, 44640, 53568, 59520, 66960, 71424, 89280, 107136, 119040, 133920, 178560, 214272, 267840, 357120, 535680, 1071360.
If you add them up, you will get the total of 3,924,480.