257856144

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:302

約数の個数: 240

約数和(自身を含む): 871372800

約数和(自身を除く): 613516656

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 19, 21, 24, 26, 28, 38, 39, 42, 48, 52, 56, 57, 76, 78, 84, 91, 104, 112, 114, 133, 152, 156, 168, 169, 182, 208, 228, 239, 247, 266, 273, 304, 312, 336, 338, 364, 399, 456, 478, 494, 507, 532, 546, 624, 676, 717, 728, 741, 798, 912, 956, 988, 1014, 1064, 1092, 1183, 1352, 1434, 1456, 1482, 1596, 1673, 1729, 1912, 1976, 2028, 2128, 2184, 2366, 2704, 2868, 2964, 3107, 3192, 3211, 3346, 3458, 3549, 3824, 3952, 4056, 4368, 4541, 4732, 5019, 5187, 5736, 5928, 6214, 6384, 6422, 6692, 6916, 7098, 8112, 9082, 9321, 9464, 9633, 10038, 10374, 11472, 11856, 12428, 12844, 13384, 13623, 13832, 14196, 18164, 18642, 18928, 19266, 20076, 20748, 21749, 22477, 24856, 25688, 26768, 27246, 27664, 28392, 31787, 36328, 37284, 38532, 40152, 40391, 41496, 43498, 44954, 49712, 51376, 54492, 56784, 59033, 63574, 65247, 67431, 72656, 74568, 77064, 80304, 80782, 82992, 86996, 89908, 95361, 108984, 118066, 121173, 127148, 130494, 134862, 149136, 154128, 161564, 173992, 177099, 179816, 190722, 217968, 236132, 242346, 254296, 260988, 269724, 282737, 323128, 347984, 354198, 359632, 381444, 413231, 472264, 484692, 508592, 521976, 539448, 565474, 646256, 708396, 762888, 767429, 826462, 848211, 944528, 969384, 1043952, 1078896, 1130948, 1239693, 1416792, 1525776, 1534858, 1652924, 1696422, 1938768, 2261896, 2302287, 2479386, 2833584, 3069716, 3305848, 3392844, 4523792, 4604574, 4958772, 5372003, 6139432, 6611696, 6785688, 9209148, 9917544, 10744006, 12278864, 13571376, 16116009, 18418296, 19835088, 21488012, 32232018, 36836592, 42976024, 64464036, 85952048, 128928072, 257856144]

約数ペア:

[(1, 257856144), (2, 128928072), (3, 85952048), (4, 64464036), (6, 42976024), (7, 36836592), (8, 32232018), (12, 21488012), (13, 19835088), (14, 18418296), (16, 16116009), (19, 13571376), (21, 12278864), (24, 10744006), (26, 9917544), (28, 9209148), (38, 6785688), (39, 6611696), (42, 6139432), (48, 5372003), (52, 4958772), (56, 4604574), (57, 4523792), (76, 3392844), (78, 3305848), (84, 3069716), (91, 2833584), (104, 2479386), (112, 2302287), (114, 2261896), (133, 1938768), (152, 1696422), (156, 1652924), (168, 1534858), (169, 1525776), (182, 1416792), (208, 1239693), (228, 1130948), (239, 1078896), (247, 1043952), (266, 969384), (273, 944528), (304, 848211), (312, 826462), (336, 767429), (338, 762888), (364, 708396), (399, 646256), (456, 565474), (478, 539448), (494, 521976), (507, 508592), (532, 484692), (546, 472264), (624, 413231), (676, 381444), (717, 359632), (728, 354198), (741, 347984), (798, 323128), (912, 282737), (956, 269724), (988, 260988), (1014, 254296), (1064, 242346), (1092, 236132), (1183, 217968), (1352, 190722), (1434, 179816), (1456, 177099), (1482, 173992), (1596, 161564), (1673, 154128), (1729, 149136), (1912, 134862), (1976, 130494), (2028, 127148), (2128, 121173), (2184, 118066), (2366, 108984), (2704, 95361), (2868, 89908), (2964, 86996), (3107, 82992), (3192, 80782), (3211, 80304), (3346, 77064), (3458, 74568), (3549, 72656), (3824, 67431), (3952, 65247), (4056, 63574), (4368, 59033), (4541, 56784), (4732, 54492), (5019, 51376), (5187, 49712), (5736, 44954), (5928, 43498), (6214, 41496), (6384, 40391), (6422, 40152), (6692, 38532), (6916, 37284), (7098, 36328), (8112, 31787), (9082, 28392), (9321, 27664), (9464, 27246), (9633, 26768), (10038, 25688), (10374, 24856), (11472, 22477), (11856, 21749), (12428, 20748), (12844, 20076), (13384, 19266), (13623, 18928), (13832, 18642), (14196, 18164)]