1990515456

素因数分解:

$2^8\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^3$

素因数の和:144

約数の個数: 216

約数和(自身を含む): 6134943360

約数和(自身を除く): 4144427904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 31, 32, 36, 48, 58, 62, 64, 72, 87, 93, 96, 116, 124, 128, 144, 174, 186, 192, 232, 248, 256, 261, 279, 288, 348, 372, 384, 464, 496, 522, 558, 576, 696, 744, 768, 899, 928, 961, 992, 1044, 1116, 1152, 1392, 1488, 1798, 1856, 1922, 1984, 2088, 2232, 2304, 2697, 2784, 2883, 2976, 3596, 3712, 3844, 3968, 4176, 4464, 5394, 5568, 5766, 5952, 7192, 7424, 7688, 7936, 8091, 8352, 8649, 8928, 10788, 11136, 11532, 11904, 14384, 15376, 16182, 16704, 17298, 17856, 21576, 22272, 23064, 23808, 27869, 28768, 29791, 30752, 32364, 33408, 34596, 35712, 43152, 46128, 55738, 57536, 59582, 61504, 64728, 66816, 69192, 71424, 83607, 86304, 89373, 92256, 111476, 115072, 119164, 123008, 129456, 138384, 167214, 172608, 178746, 184512, 222952, 230144, 238328, 246016, 250821, 258912, 268119, 276768, 334428, 345216, 357492, 369024, 445904, 476656, 501642, 517824, 536238, 553536, 668856, 690432, 714984, 738048, 863939, 891808, 953312, 1003284, 1035648, 1072476, 1107072, 1337712, 1429968, 1727878, 1783616, 1906624, 2006568, 2071296, 2144952, 2214144, 2591817, 2675424, 2859936, 3455756, 3567232, 3813248, 4013136, 4289904, 5183634, 5350848, 5719872, 6911512, 7134464, 7626496, 7775451, 8026272, 8579808, 10367268, 10701696, 11439744, 13823024, 15550902, 16052544, 17159616, 20734536, 21403392, 22879488, 27646048, 31101804, 32105088, 34319232, 41469072, 55292096, 62203608, 64210176, 68638464, 82938144, 110584192, 124407216, 165876288, 221168384, 248814432, 331752576, 497628864, 663505152, 995257728, 1990515456]

約数ペア:

[(1, 1990515456), (2, 995257728), (3, 663505152), (4, 497628864), (6, 331752576), (8, 248814432), (9, 221168384), (12, 165876288), (16, 124407216), (18, 110584192), (24, 82938144), (29, 68638464), (31, 64210176), (32, 62203608), (36, 55292096), (48, 41469072), (58, 34319232), (62, 32105088), (64, 31101804), (72, 27646048), (87, 22879488), (93, 21403392), (96, 20734536), (116, 17159616), (124, 16052544), (128, 15550902), (144, 13823024), (174, 11439744), (186, 10701696), (192, 10367268), (232, 8579808), (248, 8026272), (256, 7775451), (261, 7626496), (279, 7134464), (288, 6911512), (348, 5719872), (372, 5350848), (384, 5183634), (464, 4289904), (496, 4013136), (522, 3813248), (558, 3567232), (576, 3455756), (696, 2859936), (744, 2675424), (768, 2591817), (899, 2214144), (928, 2144952), (961, 2071296), (992, 2006568), (1044, 1906624), (1116, 1783616), (1152, 1727878), (1392, 1429968), (1488, 1337712), (1798, 1107072), (1856, 1072476), (1922, 1035648), (1984, 1003284), (2088, 953312), (2232, 891808), (2304, 863939), (2697, 738048), (2784, 714984), (2883, 690432), (2976, 668856), (3596, 553536), (3712, 536238), (3844, 517824), (3968, 501642), (4176, 476656), (4464, 445904), (5394, 369024), (5568, 357492), (5766, 345216), (5952, 334428), (7192, 276768), (7424, 268119), (7688, 258912), (7936, 250821), (8091, 246016), (8352, 238328), (8649, 230144), (8928, 222952), (10788, 184512), (11136, 178746), (11532, 172608), (11904, 167214), (14384, 138384), (15376, 129456), (16182, 123008), (16704, 119164), (17298, 115072), (17856, 111476), (21576, 92256), (22272, 89373), (23064, 86304), (23808, 83607), (27869, 71424), (28768, 69192), (29791, 66816), (30752, 64728), (32364, 61504), (33408, 59582), (34596, 57536), (35712, 55738), (43152, 46128)]