678458612

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{523}}^1$

素因数の和:673

約数の個数: 72

約数和(自身を含む): 1369337760

約数和(自身を除く): 690879148

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 101, 169, 202, 247, 338, 404, 494, 523, 676, 988, 1046, 1313, 1919, 2092, 2626, 3211, 3838, 5252, 6422, 6799, 7676, 9937, 12844, 13598, 17069, 19874, 24947, 27196, 34138, 39748, 49894, 52823, 68276, 88387, 99788, 105646, 129181, 176774, 211292, 258362, 324311, 353548, 516724, 648622, 686699, 1003637, 1297244, 1373398, 1679353, 2007274, 2746796, 3358706, 4014548, 6717412, 8927087, 13047281, 17854174, 26094562, 35708348, 52189124, 169614653, 339229306, 678458612]

約数ペア:

[(1, 678458612), (2, 339229306), (4, 169614653), (13, 52189124), (19, 35708348), (26, 26094562), (38, 17854174), (52, 13047281), (76, 8927087), (101, 6717412), (169, 4014548), (202, 3358706), (247, 2746796), (338, 2007274), (404, 1679353), (494, 1373398), (523, 1297244), (676, 1003637), (988, 686699), (1046, 648622), (1313, 516724), (1919, 353548), (2092, 324311), (2626, 258362), (3211, 211292), (3838, 176774), (5252, 129181), (6422, 105646), (6799, 99788), (7676, 88387), (9937, 68276), (12844, 52823), (13598, 49894), (17069, 39748), (19874, 34138), (24947, 27196)]