278004636

素因数分解:

$2^2\times 3^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:495

約数の個数: 216

約数和(自身を含む): 914986800

約数和(自身を除く): 636982164

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 49, 52, 54, 63, 78, 81, 84, 91, 98, 108, 117, 126, 147, 156, 162, 182, 189, 196, 234, 243, 252, 273, 294, 324, 351, 364, 378, 441, 449, 468, 486, 546, 567, 588, 637, 702, 756, 819, 882, 898, 972, 1053, 1092, 1134, 1274, 1323, 1347, 1404, 1638, 1701, 1764, 1796, 1911, 2106, 2268, 2457, 2548, 2646, 2694, 3143, 3159, 3276, 3402, 3822, 3969, 4041, 4212, 4914, 5292, 5388, 5733, 5837, 6286, 6318, 6804, 7371, 7644, 7938, 8082, 9429, 9828, 11466, 11674, 11907, 12123, 12572, 12636, 14742, 15876, 16164, 17199, 17511, 18858, 22001, 22113, 22932, 23348, 23814, 24246, 28287, 29484, 34398, 35022, 36369, 37716, 40859, 44002, 44226, 47628, 48492, 51597, 52533, 56574, 66003, 68796, 70044, 72738, 81718, 84861, 88004, 88452, 103194, 105066, 109107, 113148, 122577, 132006, 145476, 154791, 157599, 163436, 169722, 198009, 206388, 210132, 218214, 245154, 254583, 264012, 286013, 309582, 315198, 339444, 367731, 396018, 436428, 472797, 490308, 509166, 572026, 594027, 619164, 630396, 735462, 763749, 792036, 858039, 945594, 1018332, 1103193, 1144052, 1188054, 1418391, 1470924, 1527498, 1716078, 1782081, 1891188, 2206386, 2376108, 2574117, 2836782, 3054996, 3309579, 3432156, 3564162, 4412772, 5148234, 5346243, 5673564, 6619158, 7128324, 7722351, 9928737, 10296468, 10692486, 13238316, 15444702, 19857474, 21384972, 23167053, 30889404, 39714948, 46334106, 69501159, 92668212, 139002318, 278004636]

約数ペア:

[(1, 278004636), (2, 139002318), (3, 92668212), (4, 69501159), (6, 46334106), (7, 39714948), (9, 30889404), (12, 23167053), (13, 21384972), (14, 19857474), (18, 15444702), (21, 13238316), (26, 10692486), (27, 10296468), (28, 9928737), (36, 7722351), (39, 7128324), (42, 6619158), (49, 5673564), (52, 5346243), (54, 5148234), (63, 4412772), (78, 3564162), (81, 3432156), (84, 3309579), (91, 3054996), (98, 2836782), (108, 2574117), (117, 2376108), (126, 2206386), (147, 1891188), (156, 1782081), (162, 1716078), (182, 1527498), (189, 1470924), (196, 1418391), (234, 1188054), (243, 1144052), (252, 1103193), (273, 1018332), (294, 945594), (324, 858039), (351, 792036), (364, 763749), (378, 735462), (441, 630396), (449, 619164), (468, 594027), (486, 572026), (546, 509166), (567, 490308), (588, 472797), (637, 436428), (702, 396018), (756, 367731), (819, 339444), (882, 315198), (898, 309582), (972, 286013), (1053, 264012), (1092, 254583), (1134, 245154), (1274, 218214), (1323, 210132), (1347, 206388), (1404, 198009), (1638, 169722), (1701, 163436), (1764, 157599), (1796, 154791), (1911, 145476), (2106, 132006), (2268, 122577), (2457, 113148), (2548, 109107), (2646, 105066), (2694, 103194), (3143, 88452), (3159, 88004), (3276, 84861), (3402, 81718), (3822, 72738), (3969, 70044), (4041, 68796), (4212, 66003), (4914, 56574), (5292, 52533), (5388, 51597), (5733, 48492), (5837, 47628), (6286, 44226), (6318, 44002), (6804, 40859), (7371, 37716), (7644, 36369), (7938, 35022), (8082, 34398), (9429, 29484), (9828, 28287), (11466, 24246), (11674, 23814), (11907, 23348), (12123, 22932), (12572, 22113), (12636, 22001), (14742, 18858), (15876, 17511), (16164, 17199)]