The factors of the number 216,020,420 are: 1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 49, 55, 58, 70, 77, 98, 110, 116, 140, 145, 154, 196, 203, 220, 245, 290, 308, 319, 385, 406, 490, 539, 580, 638, 691, 770, 812, 980, 1015, 1078, 1276, 1382, 1421, 1540, 1595, 2030, 2156, 2233, 2695, 2764, 2842, 3190, 3455, 4060, 4466, 4837, 5390, 5684, 6380, 6910, 7105, 7601, 8932, 9674, 10780, 11165, 13820, 14210, 15202, 15631, 19348, 20039, 22330, 24185, 28420, 30404, 31262, 33859, 38005, 40078, 44660, 48370, 53207, 62524, 67718, 76010, 78155, 80156, 96740, 100195, 106414, 135436, 140273, 152020, 156310, 169295, 200390, 212828, 220429, 266035, 280546, 312620, 338590, 372449, 400780, 440858, 532070, 561092, 677180, 701365, 744898, 881716, 981911, 1064140, 1102145, 1402730, 1489796, 1543003, 1862245, 1963822, 2204290, 2805460, 3086006, 3724490, 3927644, 4408580, 4909555, 6172012, 7448980, 7715015, 9819110, 10801021, 15430030, 19638220, 21602042, 30860060, 43204084, 54005105, 108010210, 216020420.
If you add them up, you will get the total of 596,393,280.