The factors of the number 276,435,864 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 397, 456, 509, 684, 794, 1018, 1191, 1368, 1527, 1588, 2036, 2382, 3054, 3176, 3573, 4072, 4581, 4764, 6108, 7146, 7543, 9162, 9528, 9671, 12216, 14292, 15086, 18324, 19342, 22629, 28584, 29013, 30172, 36648, 38684, 45258, 58026, 60344, 67887, 77368, 87039, 90516, 116052, 135774, 174078, 181032, 202073, 232104, 271548, 348156, 404146, 543096, 606219, 696312, 808292, 1212438, 1616584, 1818657, 2424876, 3637314, 3839387, 4849752, 7274628, 7678774, 11518161, 14549256, 15357548, 23036322, 30715096, 34554483, 46072644, 69108966, 92145288, 138217932, 276435864.
If you add them up, you will get the total of 276,436,379. Now subtract 276,435,864 to get 515,186,136