256225788

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:122

約数の個数: 288

約数和(自身を含む): 874065920

約数和(自身を除く): 617840132

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 29, 31, 36, 39, 42, 52, 54, 58, 62, 63, 78, 84, 87, 91, 93, 108, 116, 117, 124, 126, 156, 174, 182, 186, 189, 203, 217, 234, 252, 261, 273, 279, 348, 351, 364, 372, 377, 378, 403, 406, 434, 468, 522, 546, 558, 609, 651, 702, 754, 756, 783, 806, 812, 819, 837, 841, 868, 899, 1044, 1092, 1116, 1131, 1209, 1218, 1302, 1404, 1508, 1566, 1612, 1638, 1674, 1682, 1798, 1827, 1953, 2262, 2418, 2436, 2457, 2523, 2604, 2639, 2697, 2821, 3132, 3276, 3348, 3364, 3393, 3596, 3627, 3654, 3906, 4524, 4836, 4914, 5046, 5278, 5394, 5481, 5642, 5859, 5887, 6293, 6786, 7254, 7308, 7569, 7812, 7917, 8091, 8463, 9828, 10092, 10179, 10556, 10788, 10881, 10933, 10962, 11284, 11687, 11718, 11774, 12586, 13572, 14508, 15138, 15834, 16182, 16926, 17661, 18879, 20358, 21762, 21866, 21924, 22707, 23374, 23436, 23548, 23751, 24273, 25172, 25389, 26071, 30276, 31668, 32364, 32799, 33852, 35061, 35322, 37758, 40716, 43524, 43732, 45414, 46748, 47502, 48546, 50778, 52142, 52983, 56637, 65598, 70122, 70644, 71253, 75516, 76167, 76531, 78213, 81809, 90828, 95004, 97092, 98397, 101556, 104284, 105183, 105966, 113274, 131196, 140244, 142506, 152334, 153062, 156426, 158949, 163618, 169911, 182497, 196794, 210366, 211932, 226548, 229593, 234639, 245427, 285012, 295191, 304668, 306124, 312852, 315549, 317898, 327236, 338923, 339822, 364994, 393588, 420732, 459186, 469278, 490854, 547491, 590382, 631098, 635796, 677846, 679644, 688779, 703917, 729988, 736281, 918372, 938556, 981708, 1016769, 1094982, 1180764, 1262196, 1355692, 1377558, 1407834, 1472562, 1642473, 2033538, 2066337, 2189964, 2208843, 2372461, 2755116, 2815668, 2945124, 3050307, 3284946, 4067076, 4132674, 4417686, 4744922, 4927419, 6100614, 6569892, 7117383, 8265348, 8835372, 9150921, 9489844, 9854838, 12201228, 14234766, 18301842, 19709676, 21352149, 28469532, 36603684, 42704298, 64056447, 85408596, 128112894, 256225788]

約数ペア:

[(1, 256225788), (2, 128112894), (3, 85408596), (4, 64056447), (6, 42704298), (7, 36603684), (9, 28469532), (12, 21352149), (13, 19709676), (14, 18301842), (18, 14234766), (21, 12201228), (26, 9854838), (27, 9489844), (28, 9150921), (29, 8835372), (31, 8265348), (36, 7117383), (39, 6569892), (42, 6100614), (52, 4927419), (54, 4744922), (58, 4417686), (62, 4132674), (63, 4067076), (78, 3284946), (84, 3050307), (87, 2945124), (91, 2815668), (93, 2755116), (108, 2372461), (116, 2208843), (117, 2189964), (124, 2066337), (126, 2033538), (156, 1642473), (174, 1472562), (182, 1407834), (186, 1377558), (189, 1355692), (203, 1262196), (217, 1180764), (234, 1094982), (252, 1016769), (261, 981708), (273, 938556), (279, 918372), (348, 736281), (351, 729988), (364, 703917), (372, 688779), (377, 679644), (378, 677846), (403, 635796), (406, 631098), (434, 590382), (468, 547491), (522, 490854), (546, 469278), (558, 459186), (609, 420732), (651, 393588), (702, 364994), (754, 339822), (756, 338923), (783, 327236), (806, 317898), (812, 315549), (819, 312852), (837, 306124), (841, 304668), (868, 295191), (899, 285012), (1044, 245427), (1092, 234639), (1116, 229593), (1131, 226548), (1209, 211932), (1218, 210366), (1302, 196794), (1404, 182497), (1508, 169911), (1566, 163618), (1612, 158949), (1638, 156426), (1674, 153062), (1682, 152334), (1798, 142506), (1827, 140244), (1953, 131196), (2262, 113274), (2418, 105966), (2436, 105183), (2457, 104284), (2523, 101556), (2604, 98397), (2639, 97092), (2697, 95004), (2821, 90828), (3132, 81809), (3276, 78213), (3348, 76531), (3364, 76167), (3393, 75516), (3596, 71253), (3627, 70644), (3654, 70122), (3906, 65598), (4524, 56637), (4836, 52983), (4914, 52142), (5046, 50778), (5278, 48546), (5394, 47502), (5481, 46748), (5642, 45414), (5859, 43732), (5887, 43524), (6293, 40716), (6786, 37758), (7254, 35322), (7308, 35061), (7569, 33852), (7812, 32799), (7917, 32364), (8091, 31668), (8463, 30276), (9828, 26071), (10092, 25389), (10179, 25172), (10556, 24273), (10788, 23751), (10881, 23548), (10933, 23436), (10962, 23374), (11284, 22707), (11687, 21924), (11718, 21866), (11774, 21762), (12586, 20358), (13572, 18879), (14508, 17661), (15138, 16926), (15834, 16182)]