81039456

素因数分解:

$2^5\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:389

約数の個数: 144

約数和(自身を含む): 246879360

約数和(自身を除く): 165839904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 31, 32, 36, 48, 58, 62, 72, 87, 93, 96, 116, 124, 144, 174, 186, 232, 248, 261, 279, 288, 313, 348, 372, 464, 496, 522, 558, 626, 696, 744, 899, 928, 939, 992, 1044, 1116, 1252, 1392, 1488, 1798, 1878, 2088, 2232, 2504, 2697, 2784, 2817, 2976, 3596, 3756, 4176, 4464, 5008, 5394, 5634, 7192, 7512, 8091, 8352, 8928, 9077, 9703, 10016, 10788, 11268, 14384, 15024, 16182, 18154, 19406, 21576, 22536, 27231, 28768, 29109, 30048, 32364, 36308, 38812, 43152, 45072, 54462, 58218, 64728, 72616, 77624, 81693, 86304, 87327, 90144, 108924, 116436, 129456, 145232, 155248, 163386, 174654, 217848, 232872, 258912, 281387, 290464, 310496, 326772, 349308, 435696, 465744, 562774, 653544, 698616, 844161, 871392, 931488, 1125548, 1307088, 1397232, 1688322, 2251096, 2532483, 2614176, 2794464, 3376644, 4502192, 5064966, 6753288, 9004384, 10129932, 13506576, 20259864, 27013152, 40519728, 81039456]

約数ペア:

[(1, 81039456), (2, 40519728), (3, 27013152), (4, 20259864), (6, 13506576), (8, 10129932), (9, 9004384), (12, 6753288), (16, 5064966), (18, 4502192), (24, 3376644), (29, 2794464), (31, 2614176), (32, 2532483), (36, 2251096), (48, 1688322), (58, 1397232), (62, 1307088), (72, 1125548), (87, 931488), (93, 871392), (96, 844161), (116, 698616), (124, 653544), (144, 562774), (174, 465744), (186, 435696), (232, 349308), (248, 326772), (261, 310496), (279, 290464), (288, 281387), (313, 258912), (348, 232872), (372, 217848), (464, 174654), (496, 163386), (522, 155248), (558, 145232), (626, 129456), (696, 116436), (744, 108924), (899, 90144), (928, 87327), (939, 86304), (992, 81693), (1044, 77624), (1116, 72616), (1252, 64728), (1392, 58218), (1488, 54462), (1798, 45072), (1878, 43152), (2088, 38812), (2232, 36308), (2504, 32364), (2697, 30048), (2784, 29109), (2817, 28768), (2976, 27231), (3596, 22536), (3756, 21576), (4176, 19406), (4464, 18154), (5008, 16182), (5394, 15024), (5634, 14384), (7192, 11268), (7512, 10788), (8091, 10016), (8352, 9703), (8928, 9077)]