51220728

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:111

約数の個数: 256

約数和(自身を含む): 172368000

約数和(自身を除く): 121147272

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 17, 18, 24, 26, 27, 29, 34, 36, 37, 39, 51, 52, 54, 58, 68, 72, 74, 78, 87, 102, 104, 108, 111, 116, 117, 136, 148, 153, 156, 174, 204, 216, 221, 222, 232, 234, 261, 296, 306, 312, 333, 348, 351, 377, 408, 442, 444, 459, 468, 481, 493, 522, 612, 629, 663, 666, 696, 702, 754, 783, 884, 888, 918, 936, 962, 986, 999, 1044, 1073, 1131, 1224, 1258, 1326, 1332, 1404, 1443, 1479, 1508, 1566, 1768, 1836, 1887, 1924, 1972, 1989, 1998, 2088, 2146, 2262, 2516, 2652, 2664, 2808, 2886, 2958, 3016, 3132, 3219, 3393, 3672, 3774, 3848, 3944, 3978, 3996, 4292, 4329, 4437, 4524, 5032, 5304, 5661, 5772, 5916, 5967, 6264, 6409, 6438, 6786, 7548, 7956, 7992, 8177, 8584, 8658, 8874, 9048, 9657, 10179, 11322, 11544, 11832, 11934, 12818, 12876, 12987, 13311, 13572, 13949, 15096, 15912, 16354, 16983, 17316, 17748, 18241, 19227, 19314, 20358, 22644, 23868, 24531, 25636, 25752, 25974, 26622, 27144, 27898, 28971, 32708, 33966, 34632, 35496, 36482, 38454, 38628, 40716, 41847, 45288, 47736, 49062, 51272, 51948, 53244, 54723, 55796, 57681, 57942, 65416, 67932, 72964, 73593, 76908, 77256, 81432, 83694, 98124, 103896, 106488, 109446, 111592, 115362, 115884, 125541, 135864, 145928, 147186, 153816, 164169, 167388, 173043, 196248, 218892, 220779, 230724, 231768, 237133, 251082, 294372, 328338, 334776, 346086, 376623, 437784, 441558, 461448, 474266, 492507, 502164, 588744, 656676, 692172, 711399, 753246, 883116, 948532, 985014, 1004328, 1313352, 1384344, 1422798, 1506492, 1766232, 1897064, 1970028, 2134197, 2845596, 3012984, 3940056, 4268394, 5691192, 6402591, 8536788, 12805182, 17073576, 25610364, 51220728]

約数ペア:

[(1, 51220728), (2, 25610364), (3, 17073576), (4, 12805182), (6, 8536788), (8, 6402591), (9, 5691192), (12, 4268394), (13, 3940056), (17, 3012984), (18, 2845596), (24, 2134197), (26, 1970028), (27, 1897064), (29, 1766232), (34, 1506492), (36, 1422798), (37, 1384344), (39, 1313352), (51, 1004328), (52, 985014), (54, 948532), (58, 883116), (68, 753246), (72, 711399), (74, 692172), (78, 656676), (87, 588744), (102, 502164), (104, 492507), (108, 474266), (111, 461448), (116, 441558), (117, 437784), (136, 376623), (148, 346086), (153, 334776), (156, 328338), (174, 294372), (204, 251082), (216, 237133), (221, 231768), (222, 230724), (232, 220779), (234, 218892), (261, 196248), (296, 173043), (306, 167388), (312, 164169), (333, 153816), (348, 147186), (351, 145928), (377, 135864), (408, 125541), (442, 115884), (444, 115362), (459, 111592), (468, 109446), (481, 106488), (493, 103896), (522, 98124), (612, 83694), (629, 81432), (663, 77256), (666, 76908), (696, 73593), (702, 72964), (754, 67932), (783, 65416), (884, 57942), (888, 57681), (918, 55796), (936, 54723), (962, 53244), (986, 51948), (999, 51272), (1044, 49062), (1073, 47736), (1131, 45288), (1224, 41847), (1258, 40716), (1326, 38628), (1332, 38454), (1404, 36482), (1443, 35496), (1479, 34632), (1508, 33966), (1566, 32708), (1768, 28971), (1836, 27898), (1887, 27144), (1924, 26622), (1972, 25974), (1989, 25752), (1998, 25636), (2088, 24531), (2146, 23868), (2262, 22644), (2516, 20358), (2652, 19314), (2664, 19227), (2808, 18241), (2886, 17748), (2958, 17316), (3016, 16983), (3132, 16354), (3219, 15912), (3393, 15096), (3672, 13949), (3774, 13572), (3848, 13311), (3944, 12987), (3978, 12876), (3996, 12818), (4292, 11934), (4329, 11832), (4437, 11544), (4524, 11322), (5032, 10179), (5304, 9657), (5661, 9048), (5772, 8874), (5916, 8658), (5967, 8584), (6264, 8177), (6409, 7992), (6438, 7956), (6786, 7548)]