The factors of the number 8,961,720 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 23, 24, 30, 34, 40, 46, 51, 60, 68, 69, 85, 92, 102, 115, 120, 136, 138, 170, 184, 191, 204, 230, 255, 276, 340, 345, 382, 391, 408, 460, 510, 552, 573, 680, 690, 764, 782, 920, 955, 1020, 1146, 1173, 1380, 1528, 1564, 1910, 1955, 2040, 2292, 2346, 2760, 2865, 3128, 3247, 3820, 3910, 4393, 4584, 4692, 5730, 5865, 6494, 7640, 7820, 8786, 9384, 9741, 11460, 11730, 12988, 13179, 15640, 16235, 17572, 19482, 21965, 22920, 23460, 25976, 26358, 32470, 35144, 38964, 43930, 46920, 48705, 52716, 64940, 65895, 74681, 77928, 87860, 97410, 105432, 129880, 131790, 149362, 175720, 194820, 224043, 263580, 298724, 373405, 389640, 448086, 527160, 597448, 746810, 896172, 1120215, 1493620, 1792344, 2240430, 2987240, 4480860, 8961720.
If you add them up, you will get the total of 29,859,840.