The factors of the number 18,708,768 are: 1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 32, 36, 38, 39, 48, 52, 57, 72, 76, 78, 96, 104, 114, 117, 144, 152, 156, 171, 208, 228, 234, 247, 263, 288, 304, 312, 342, 416, 456, 468, 494, 526, 608, 624, 684, 741, 789, 912, 936, 988, 1052, 1248, 1368, 1482, 1578, 1824, 1872, 1976, 2104, 2223, 2367, 2736, 2964, 3156, 3419, 3744, 3952, 4208, 4446, 4734, 4997, 5472, 5928, 6312, 6838, 7904, 8416, 8892, 9468, 9994, 10257, 11856, 12624, 13676, 14991, 17784, 18936, 19988, 20514, 23712, 25248, 27352, 29982, 30771, 35568, 37872, 39976, 41028, 44973, 54704, 59964, 61542, 64961, 71136, 75744, 79952, 82056, 89946, 109408, 119928, 123084, 129922, 159904, 164112, 179892, 194883, 239856, 246168, 259844, 328224, 359784, 389766, 479712, 492336, 519688, 584649, 719568, 779532, 984672, 1039376, 1169298, 1439136, 1559064, 2078752, 2338596, 3118128, 4677192, 6236256, 9354384, 18708768.
If you add them up, you will get the total of 60,540,480.