The factors of the number 8,240,544 are: 1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 32, 36, 39, 48, 52, 62, 71, 72, 78, 93, 96, 104, 117, 124, 142, 144, 156, 186, 208, 213, 234, 248, 279, 284, 288, 312, 372, 403, 416, 426, 468, 496, 558, 568, 624, 639, 744, 806, 852, 923, 936, 992, 1116, 1136, 1209, 1248, 1278, 1488, 1612, 1704, 1846, 1872, 2201, 2232, 2272, 2418, 2556, 2769, 2976, 3224, 3408, 3627, 3692, 3744, 4402, 4464, 4836, 5112, 5538, 6448, 6603, 6816, 7254, 7384, 8307, 8804, 8928, 9672, 10224, 11076, 12896, 13206, 14508, 14768, 16614, 17608, 19344, 19809, 20448, 22152, 26412, 28613, 29016, 29536, 33228, 35216, 38688, 39618, 44304, 52824, 57226, 58032, 66456, 70432, 79236, 85839, 88608, 105648, 114452, 116064, 132912, 158472, 171678, 211296, 228904, 257517, 265824, 316944, 343356, 457808, 515034, 633888, 686712, 915616, 1030068, 1373424, 2060136, 2746848, 4120272, 8240544.
If you add them up, you will get the total of 26,417,664.