281380242

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:280

約数の個数: 128

約数和(自身を含む): 696729600

約数和(自身を除く): 415349358

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 31, 33, 39, 62, 66, 71, 78, 93, 142, 143, 149, 186, 213, 286, 298, 341, 403, 426, 429, 447, 682, 781, 806, 858, 894, 923, 1023, 1209, 1562, 1639, 1846, 1937, 2046, 2201, 2343, 2418, 2769, 3278, 3874, 4402, 4433, 4619, 4686, 4917, 5538, 5811, 6603, 8866, 9238, 9834, 10153, 10579, 11622, 13206, 13299, 13857, 20306, 21158, 21307, 24211, 26598, 27714, 28613, 30459, 31737, 42614, 48422, 50809, 57226, 60047, 60918, 63474, 63921, 72633, 85839, 101618, 116369, 120094, 127842, 137527, 145266, 152427, 171678, 180141, 232738, 275054, 304854, 314743, 327949, 349107, 360282, 412581, 629486, 655898, 660517, 698214, 825162, 944229, 983847, 1321034, 1512797, 1888458, 1967694, 1981551, 3025594, 3607439, 3963102, 4263337, 4538391, 7214878, 8526674, 9076782, 10822317, 12790011, 21644634, 25580022, 46896707, 93793414, 140690121, 281380242]

約数ペア:

[(1, 281380242), (2, 140690121), (3, 93793414), (6, 46896707), (11, 25580022), (13, 21644634), (22, 12790011), (26, 10822317), (31, 9076782), (33, 8526674), (39, 7214878), (62, 4538391), (66, 4263337), (71, 3963102), (78, 3607439), (93, 3025594), (142, 1981551), (143, 1967694), (149, 1888458), (186, 1512797), (213, 1321034), (286, 983847), (298, 944229), (341, 825162), (403, 698214), (426, 660517), (429, 655898), (447, 629486), (682, 412581), (781, 360282), (806, 349107), (858, 327949), (894, 314743), (923, 304854), (1023, 275054), (1209, 232738), (1562, 180141), (1639, 171678), (1846, 152427), (1937, 145266), (2046, 137527), (2201, 127842), (2343, 120094), (2418, 116369), (2769, 101618), (3278, 85839), (3874, 72633), (4402, 63921), (4433, 63474), (4619, 60918), (4686, 60047), (4917, 57226), (5538, 50809), (5811, 48422), (6603, 42614), (8866, 31737), (9238, 30459), (9834, 28613), (10153, 27714), (10579, 26598), (11622, 24211), (13206, 21307), (13299, 21158), (13857, 20306)]