2440809217

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 3362325120

約数和(自身を除く): 921515903

約数列:

[1, 7, 11, 19, 47, 49, 77, 121, 133, 209, 329, 461, 517, 539, 847, 893, 931, 1463, 2299, 2303, 3227, 3619, 5071, 5687, 5929, 6251, 8759, 9823, 10241, 16093, 21667, 22589, 25333, 35497, 39809, 43757, 55781, 61313, 68761, 96349, 108053, 112651, 151669, 238337, 248479, 278663, 390467, 411673, 429191, 481327, 674443, 756371, 1059839, 1061683, 1668359, 2621707, 2733269, 2881711, 4528403, 4721101, 5294597, 7418873, 11678513, 18351949, 20171977, 31698821, 49812433, 51932111, 128463643, 221891747, 348687031, 2440809217]

約数ペア:

[(1, 2440809217), (7, 348687031), (11, 221891747), (19, 128463643), (47, 51932111), (49, 49812433), (77, 31698821), (121, 20171977), (133, 18351949), (209, 11678513), (329, 7418873), (461, 5294597), (517, 4721101), (539, 4528403), (847, 2881711), (893, 2733269), (931, 2621707), (1463, 1668359), (2299, 1061683), (2303, 1059839), (3227, 756371), (3619, 674443), (5071, 481327), (5687, 429191), (5929, 411673), (6251, 390467), (8759, 278663), (9823, 248479), (10241, 238337), (16093, 151669), (21667, 112651), (22589, 108053), (25333, 96349), (35497, 68761), (39809, 61313), (43757, 55781)]