The factors of the number 442,260 are: 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 81, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 162, 180, 182, 189, 195, 210, 234, 243, 252, 260, 270, 273, 315, 324, 351, 364, 378, 390, 405, 420, 455, 468, 486, 540, 546, 567, 585, 630, 702, 756, 780, 810, 819, 910, 945, 972, 1053, 1092, 1134, 1170, 1215, 1260, 1365, 1404, 1620, 1638, 1701, 1755, 1820, 1890, 2106, 2268, 2340, 2430, 2457, 2730, 2835, 3159, 3276, 3402, 3510, 3780, 4095, 4212, 4860, 4914, 5265, 5460, 5670, 6318, 6804, 7020, 7371, 8190, 8505, 9828, 10530, 11340, 12285, 12636, 14742, 15795, 16380, 17010, 21060, 22113, 24570, 29484, 31590, 34020, 36855, 44226, 49140, 63180, 73710, 88452, 110565, 147420, 221130, 442260.
If you add them up, you will get the total of 1,712,256.