The factors of the number 1,146,960 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 59, 60, 72, 80, 81, 90, 108, 118, 120, 135, 144, 162, 177, 180, 216, 236, 240, 243, 270, 295, 324, 354, 360, 405, 432, 472, 486, 531, 540, 590, 648, 708, 720, 810, 885, 944, 972, 1062, 1080, 1180, 1215, 1296, 1416, 1593, 1620, 1770, 1944, 2124, 2160, 2360, 2430, 2655, 2832, 3186, 3240, 3540, 3888, 4248, 4720, 4779, 4860, 5310, 6372, 6480, 7080, 7965, 8496, 9558, 9720, 10620, 12744, 14160, 14337, 15930, 19116, 19440, 21240, 23895, 25488, 28674, 31860, 38232, 42480, 47790, 57348, 63720, 71685, 76464, 95580, 114696, 127440, 143370, 191160, 229392, 286740, 382320, 573480, 1146960.
If you add them up, you will get the total of 4,062,240.