The factors of the number 501,344,220 are: 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 107, 130, 156, 195, 214, 260, 321, 390, 428, 535, 642, 780, 1070, 1284, 1391, 1605, 2140, 2782, 3210, 4173, 5564, 6007, 6420, 6955, 8346, 12014, 13910, 16692, 18021, 20865, 24028, 27820, 30035, 36042, 41730, 60070, 72084, 78091, 83460, 90105, 120140, 156182, 180210, 234273, 312364, 360420, 390455, 468546, 642749, 780910, 937092, 1171365, 1285498, 1561820, 1928247, 2342730, 2570996, 3213745, 3856494, 4685460, 6427490, 7712988, 8355737, 9641235, 12854980, 16711474, 19282470, 25067211, 33422948, 38564940, 41778685, 50134422, 83557370, 100268844, 125336055, 167114740, 250672110, 501344220.
If you add them up, you will get the total of 1,526,128,128.