280991984

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{3271}}^1$

素因数の和:3358

約数の個数: 80

約数和(自身を含む): 681623040

約数和(自身を除く): 400631056

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 59, 91, 104, 112, 118, 182, 208, 236, 364, 413, 472, 728, 767, 826, 944, 1456, 1534, 1652, 3068, 3271, 3304, 5369, 6136, 6542, 6608, 10738, 12272, 13084, 21476, 22897, 26168, 42523, 42952, 45794, 52336, 85046, 85904, 91588, 170092, 183176, 192989, 297661, 340184, 366352, 385978, 595322, 680368, 771956, 1190644, 1350923, 1543912, 2381288, 2508857, 2701846, 3087824, 4762576, 5017714, 5403692, 10035428, 10807384, 17561999, 20070856, 21614768, 35123998, 40141712, 70247996, 140495992, 280991984]

約数ペア:

[(1, 280991984), (2, 140495992), (4, 70247996), (7, 40141712), (8, 35123998), (13, 21614768), (14, 20070856), (16, 17561999), (26, 10807384), (28, 10035428), (52, 5403692), (56, 5017714), (59, 4762576), (91, 3087824), (104, 2701846), (112, 2508857), (118, 2381288), (182, 1543912), (208, 1350923), (236, 1190644), (364, 771956), (413, 680368), (472, 595322), (728, 385978), (767, 366352), (826, 340184), (944, 297661), (1456, 192989), (1534, 183176), (1652, 170092), (3068, 91588), (3271, 85904), (3304, 85046), (5369, 52336), (6136, 45794), (6542, 42952), (6608, 42523), (10738, 26168), (12272, 22897), (13084, 21476)]