78670431

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 143161200

約数和(自身を除く): 64490769

約数列:

[1, 3, 7, 9, 19, 21, 41, 49, 57, 63, 123, 133, 147, 171, 229, 287, 369, 399, 441, 687, 779, 861, 931, 1197, 1603, 2009, 2061, 2337, 2583, 2793, 4351, 4809, 5453, 6027, 7011, 8379, 9389, 11221, 13053, 14427, 16359, 18081, 28167, 30457, 33663, 38171, 39159, 49077, 65723, 84501, 91371, 100989, 114513, 178391, 197169, 213199, 274113, 343539, 460061, 535173, 591507, 639597, 1248737, 1380183, 1605519, 1918791, 3746211, 4140549, 8741159, 11238633, 26223477, 78670431]

約数ペア:

[(1, 78670431), (3, 26223477), (7, 11238633), (9, 8741159), (19, 4140549), (21, 3746211), (41, 1918791), (49, 1605519), (57, 1380183), (63, 1248737), (123, 639597), (133, 591507), (147, 535173), (171, 460061), (229, 343539), (287, 274113), (369, 213199), (399, 197169), (441, 178391), (687, 114513), (779, 100989), (861, 91371), (931, 84501), (1197, 65723), (1603, 49077), (2009, 39159), (2061, 38171), (2337, 33663), (2583, 30457), (2793, 28167), (4351, 18081), (4809, 16359), (5453, 14427), (6027, 13053), (7011, 11221), (8379, 9389)]