The factors of the number 144,420,444 are: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 31, 36, 38, 42, 49, 57, 62, 63, 76, 84, 93, 98, 114, 124, 126, 133, 139, 147, 171, 186, 196, 217, 228, 252, 266, 278, 279, 294, 342, 372, 399, 417, 434, 441, 532, 556, 558, 588, 589, 651, 684, 798, 834, 868, 882, 931, 973, 1116, 1178, 1197, 1251, 1302, 1519, 1596, 1668, 1764, 1767, 1862, 1946, 1953, 2356, 2394, 2502, 2604, 2641, 2793, 2919, 3038, 3534, 3724, 3892, 3906, 4123, 4309, 4557, 4788, 5004, 5282, 5301, 5586, 5838, 6076, 6811, 7068, 7812, 7923, 8246, 8379, 8618, 8757, 9114, 10564, 10602, 11172, 11676, 12369, 12927, 13622, 13671, 15846, 16492, 16758, 17236, 17514, 18228, 18487, 20433, 21204, 23769, 24738, 25854, 27244, 27342, 28861, 30163, 31692, 33516, 35028, 36974, 37107, 38781, 40866, 47538, 49476, 51708, 54684, 55461, 57722, 60326, 61299, 73948, 74214, 77562, 81732, 81871, 86583, 90489, 95076, 110922, 115444, 120652, 122598, 129409, 148428, 155124, 163742, 166383, 173166, 180978, 211141, 221844, 245196, 245613, 258818, 259749, 271467, 327484, 332766, 346332, 361956, 388227, 422282, 491226, 517636, 519498, 542934, 573097, 633423, 665532, 736839, 776454, 844564, 982452, 1038996, 1085868, 1146194, 1164681, 1266846, 1473678, 1552908, 1719291, 1900269, 2292388, 2329362, 2533692, 2947356, 3438582, 3800538, 4011679, 4658724, 5157873, 6877164, 7601076, 8023358, 10315746, 12035037, 16046716, 20631492, 24070074, 36105111, 48140148, 72210222, 144420444.
If you add them up, you will get the total of 464,755,200.