128926728

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:729

約数の個数: 160

約数和(自身を含む): 422938560

約数和(自身を除く): 294011832

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 43, 54, 56, 63, 72, 81, 84, 86, 108, 126, 129, 162, 168, 172, 189, 216, 252, 258, 301, 324, 344, 378, 387, 504, 516, 567, 602, 648, 661, 756, 774, 903, 1032, 1134, 1161, 1204, 1322, 1512, 1548, 1806, 1983, 2268, 2322, 2408, 2644, 2709, 3096, 3483, 3612, 3966, 4536, 4627, 4644, 5288, 5418, 5949, 6966, 7224, 7932, 8127, 9254, 9288, 10836, 11898, 13881, 13932, 15864, 16254, 17847, 18508, 21672, 23796, 24381, 27762, 27864, 28423, 32508, 35694, 37016, 41643, 47592, 48762, 53541, 55524, 56846, 65016, 71388, 83286, 85269, 97524, 107082, 111048, 113692, 124929, 142776, 166572, 170538, 195048, 198961, 214164, 227384, 249858, 255807, 333144, 341076, 374787, 397922, 428328, 499716, 511614, 596883, 682152, 749574, 767421, 795844, 999432, 1023228, 1193766, 1499148, 1534842, 1591688, 1790649, 2046456, 2302263, 2387532, 2998296, 3069684, 3581298, 4604526, 4775064, 5371947, 6139368, 7162596, 9209052, 10743894, 14325192, 16115841, 18418104, 21487788, 32231682, 42975576, 64463364, 128926728]

約数ペア:

[(1, 128926728), (2, 64463364), (3, 42975576), (4, 32231682), (6, 21487788), (7, 18418104), (8, 16115841), (9, 14325192), (12, 10743894), (14, 9209052), (18, 7162596), (21, 6139368), (24, 5371947), (27, 4775064), (28, 4604526), (36, 3581298), (42, 3069684), (43, 2998296), (54, 2387532), (56, 2302263), (63, 2046456), (72, 1790649), (81, 1591688), (84, 1534842), (86, 1499148), (108, 1193766), (126, 1023228), (129, 999432), (162, 795844), (168, 767421), (172, 749574), (189, 682152), (216, 596883), (252, 511614), (258, 499716), (301, 428328), (324, 397922), (344, 374787), (378, 341076), (387, 333144), (504, 255807), (516, 249858), (567, 227384), (602, 214164), (648, 198961), (661, 195048), (756, 170538), (774, 166572), (903, 142776), (1032, 124929), (1134, 113692), (1161, 111048), (1204, 107082), (1322, 97524), (1512, 85269), (1548, 83286), (1806, 71388), (1983, 65016), (2268, 56846), (2322, 55524), (2408, 53541), (2644, 48762), (2709, 47592), (3096, 41643), (3483, 37016), (3612, 35694), (3966, 32508), (4536, 28423), (4627, 27864), (4644, 27762), (5288, 24381), (5418, 23796), (5949, 21672), (6966, 18508), (7224, 17847), (7932, 16254), (8127, 15864), (9254, 13932), (9288, 13881), (10836, 11898)]