1991503488

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:835

約数の個数: 256

約数和(自身を含む): 6234762240

約数和(自身を除く): 4243258752

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 31, 32, 34, 39, 48, 51, 52, 62, 64, 68, 78, 93, 96, 102, 104, 124, 128, 136, 156, 186, 192, 204, 208, 221, 248, 272, 312, 372, 384, 403, 408, 416, 442, 496, 527, 544, 624, 663, 744, 757, 806, 816, 832, 884, 992, 1054, 1088, 1209, 1248, 1326, 1488, 1514, 1581, 1612, 1632, 1664, 1768, 1984, 2108, 2176, 2271, 2418, 2496, 2652, 2976, 3028, 3162, 3224, 3264, 3536, 3968, 4216, 4542, 4836, 4992, 5304, 5952, 6056, 6324, 6448, 6528, 6851, 7072, 8432, 9084, 9672, 9841, 10608, 11904, 12112, 12648, 12869, 12896, 13702, 14144, 16864, 18168, 19344, 19682, 20553, 21216, 23467, 24224, 25296, 25738, 25792, 27404, 28288, 29523, 33728, 36336, 38607, 38688, 39364, 41106, 42432, 46934, 48448, 50592, 51476, 51584, 54808, 59046, 67456, 70401, 72672, 77214, 77376, 78728, 82212, 84864, 93868, 96896, 101184, 102952, 109616, 118092, 140802, 145344, 154428, 154752, 157456, 164424, 167297, 187736, 202368, 205904, 219232, 236184, 281604, 290688, 305071, 308856, 314912, 328848, 334594, 375472, 398939, 411808, 438464, 472368, 501891, 563208, 610142, 617712, 629824, 657696, 669188, 750944, 797878, 823616, 876928, 915213, 944736, 1003782, 1126416, 1196817, 1220284, 1235424, 1259648, 1315392, 1338376, 1501888, 1595756, 1647232, 1830426, 1889472, 2007564, 2252832, 2393634, 2440568, 2470848, 2630784, 2676752, 3003776, 3191512, 3660852, 3778944, 4015128, 4505664, 4787268, 4881136, 4941696, 5186207, 5353504, 6383024, 7321704, 8030256, 9011328, 9574536, 9762272, 10372414, 10707008, 12766048, 14643408, 15558621, 16060512, 19149072, 19524544, 20744828, 21414016, 25532096, 29286816, 31117242, 32121024, 38298144, 39049088, 41489656, 51064192, 58573632, 62234484, 64242048, 76596288, 82979312, 117147264, 124468968, 153192576, 165958624, 248937936, 331917248, 497875872, 663834496, 995751744, 1991503488]

約数ペア:

[(1, 1991503488), (2, 995751744), (3, 663834496), (4, 497875872), (6, 331917248), (8, 248937936), (12, 165958624), (13, 153192576), (16, 124468968), (17, 117147264), (24, 82979312), (26, 76596288), (31, 64242048), (32, 62234484), (34, 58573632), (39, 51064192), (48, 41489656), (51, 39049088), (52, 38298144), (62, 32121024), (64, 31117242), (68, 29286816), (78, 25532096), (93, 21414016), (96, 20744828), (102, 19524544), (104, 19149072), (124, 16060512), (128, 15558621), (136, 14643408), (156, 12766048), (186, 10707008), (192, 10372414), (204, 9762272), (208, 9574536), (221, 9011328), (248, 8030256), (272, 7321704), (312, 6383024), (372, 5353504), (384, 5186207), (403, 4941696), (408, 4881136), (416, 4787268), (442, 4505664), (496, 4015128), (527, 3778944), (544, 3660852), (624, 3191512), (663, 3003776), (744, 2676752), (757, 2630784), (806, 2470848), (816, 2440568), (832, 2393634), (884, 2252832), (992, 2007564), (1054, 1889472), (1088, 1830426), (1209, 1647232), (1248, 1595756), (1326, 1501888), (1488, 1338376), (1514, 1315392), (1581, 1259648), (1612, 1235424), (1632, 1220284), (1664, 1196817), (1768, 1126416), (1984, 1003782), (2108, 944736), (2176, 915213), (2271, 876928), (2418, 823616), (2496, 797878), (2652, 750944), (2976, 669188), (3028, 657696), (3162, 629824), (3224, 617712), (3264, 610142), (3536, 563208), (3968, 501891), (4216, 472368), (4542, 438464), (4836, 411808), (4992, 398939), (5304, 375472), (5952, 334594), (6056, 328848), (6324, 314912), (6448, 308856), (6528, 305071), (6851, 290688), (7072, 281604), (8432, 236184), (9084, 219232), (9672, 205904), (9841, 202368), (10608, 187736), (11904, 167297), (12112, 164424), (12648, 157456), (12869, 154752), (12896, 154428), (13702, 145344), (14144, 140802), (16864, 118092), (18168, 109616), (19344, 102952), (19682, 101184), (20553, 96896), (21216, 93868), (23467, 84864), (24224, 82212), (25296, 78728), (25738, 77376), (25792, 77214), (27404, 72672), (28288, 70401), (29523, 67456), (33728, 59046), (36336, 54808), (38607, 51584), (38688, 51476), (39364, 50592), (41106, 48448), (42432, 46934)]