1280453405

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{337}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 1962455040

約数和(自身を除く): 682001635

約数列:

[1, 5, 7, 11, 35, 55, 71, 77, 139, 337, 355, 385, 497, 695, 781, 973, 1529, 1685, 2359, 2485, 3707, 3905, 4865, 5467, 7645, 9869, 10703, 11795, 18535, 23927, 25949, 27335, 46843, 49345, 53515, 69083, 108559, 119635, 129745, 167489, 234215, 263197, 327901, 345415, 515273, 542795, 759913, 837445, 1315985, 1639505, 1842379, 2576365, 3325853, 3606911, 3799565, 9211895, 16629265, 18034555, 23280971, 36584383, 116404855, 182921915, 256090681, 1280453405]

約数ペア:

[(1, 1280453405), (5, 256090681), (7, 182921915), (11, 116404855), (35, 36584383), (55, 23280971), (71, 18034555), (77, 16629265), (139, 9211895), (337, 3799565), (355, 3606911), (385, 3325853), (497, 2576365), (695, 1842379), (781, 1639505), (973, 1315985), (1529, 837445), (1685, 759913), (2359, 542795), (2485, 515273), (3707, 345415), (3905, 327901), (4865, 263197), (5467, 234215), (7645, 167489), (9869, 129745), (10703, 119635), (11795, 108559), (18535, 69083), (23927, 53515), (25949, 49345), (27335, 46843)]