The factors of the number 64,472,220 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 29, 30, 36, 45, 46, 54, 58, 60, 69, 87, 90, 92, 108, 115, 116, 135, 138, 145, 174, 179, 180, 207, 230, 261, 270, 276, 290, 345, 348, 358, 414, 435, 460, 522, 537, 540, 580, 621, 667, 690, 716, 783, 828, 870, 895, 1035, 1044, 1074, 1242, 1305, 1334, 1380, 1566, 1611, 1740, 1790, 2001, 2070, 2148, 2484, 2610, 2668, 2685, 3105, 3132, 3222, 3335, 3580, 3915, 4002, 4117, 4140, 4833, 5191, 5220, 5370, 6003, 6210, 6444, 6670, 7830, 8004, 8055, 8234, 9666, 10005, 10382, 10740, 12006, 12351, 12420, 13340, 15573, 15660, 16110, 16468, 18009, 19332, 20010, 20585, 20764, 24012, 24165, 24702, 25955, 30015, 31146, 32220, 36018, 37053, 40020, 41170, 46719, 48330, 49404, 51910, 60030, 61755, 62292, 72036, 74106, 77865, 82340, 90045, 93438, 96660, 103820, 111159, 119393, 120060, 123510, 140157, 148212, 155730, 180090, 185265, 186876, 222318, 233595, 238786, 247020, 280314, 311460, 358179, 360180, 370530, 444636, 467190, 477572, 555795, 560628, 596965, 700785, 716358, 741060, 934380, 1074537, 1111590, 1193930, 1401570, 1432716, 1790895, 2149074, 2223180, 2387860, 2803140, 3223611, 3581790, 4298148, 5372685, 6447222, 7163580, 10745370, 12894444, 16118055, 21490740, 32236110, 64472220.
If you add them up, you will get the total of 217,728,000.