Q: What is the sum of all factors of the number 309,928,437 excluding 309,928,437?
A: 290,154,123
The factors of the number 309,928,437 are: 1, 3, 7, 9, 13, 19, 21, 27, 39, 57, 63, 81, 91, 117, 133, 171, 189, 247, 273, 351, 399, 513, 567, 741, 819, 1053, 1197, 1539, 1729, 2213, 2223, 2457, 3591, 5187, 6639, 6669, 7371, 10773, 15491, 15561, 19917, 20007, 28769, 42047, 46473, 46683, 59751, 86307, 126141, 139419, 140049, 179253, 201383, 258921, 294329, 378423, 418257, 546611, 604149, 776763, 882987, 1135269, 1254771, 1639833, 1812447, 2330289, 2648961, 3405807, 3826277, 4919499, 5437341, 7946883, 11478831, 14758497, 16312023, 23840649, 34436493, 44275491, 103309479, 309928437.
If you add them up, you will get the total of 309,928,727. Now subtract 309,928,437 to get 290,154,123