686540322

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:197

約数の個数: 144

約数和(自身を含む): 1717619904

約数和(自身を除く): 1031079582

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 43, 62, 71, 78, 86, 93, 117, 129, 142, 186, 213, 234, 258, 279, 387, 403, 426, 558, 559, 639, 774, 806, 923, 961, 1118, 1209, 1278, 1333, 1677, 1846, 1922, 2201, 2418, 2666, 2769, 2883, 3053, 3354, 3627, 3999, 4402, 5031, 5538, 5766, 6106, 6603, 7254, 7998, 8307, 8649, 9159, 10062, 11997, 12493, 13206, 16614, 17298, 17329, 18318, 19809, 23994, 24986, 27477, 28613, 34658, 37479, 39618, 39689, 41323, 51987, 54954, 57226, 68231, 74958, 79378, 82646, 85839, 94643, 103974, 112437, 119067, 123969, 136462, 155961, 171678, 189286, 204693, 224874, 238134, 247938, 257517, 283929, 311922, 357201, 371907, 409386, 515034, 537199, 567858, 614079, 714402, 743814, 851787, 887003, 1074398, 1228158, 1230359, 1611597, 1703574, 1774006, 2460718, 2661009, 2933933, 3223194, 3691077, 4834791, 5322018, 5867866, 7382154, 7983027, 8801799, 9669582, 11073231, 15966054, 17603598, 22146462, 26405397, 38141129, 52810794, 76282258, 114423387, 228846774, 343270161, 686540322]

約数ペア:

[(1, 686540322), (2, 343270161), (3, 228846774), (6, 114423387), (9, 76282258), (13, 52810794), (18, 38141129), (26, 26405397), (31, 22146462), (39, 17603598), (43, 15966054), (62, 11073231), (71, 9669582), (78, 8801799), (86, 7983027), (93, 7382154), (117, 5867866), (129, 5322018), (142, 4834791), (186, 3691077), (213, 3223194), (234, 2933933), (258, 2661009), (279, 2460718), (387, 1774006), (403, 1703574), (426, 1611597), (558, 1230359), (559, 1228158), (639, 1074398), (774, 887003), (806, 851787), (923, 743814), (961, 714402), (1118, 614079), (1209, 567858), (1278, 537199), (1333, 515034), (1677, 409386), (1846, 371907), (1922, 357201), (2201, 311922), (2418, 283929), (2666, 257517), (2769, 247938), (2883, 238134), (3053, 224874), (3354, 204693), (3627, 189286), (3999, 171678), (4402, 155961), (5031, 136462), (5538, 123969), (5766, 119067), (6106, 112437), (6603, 103974), (7254, 94643), (7998, 85839), (8307, 82646), (8649, 79378), (9159, 74958), (10062, 68231), (11997, 57226), (12493, 54954), (13206, 51987), (16614, 41323), (17298, 39689), (17329, 39618), (18318, 37479), (19809, 34658), (23994, 28613), (24986, 27477)]