261668768

素因数分解:

$2^5\times {\mathrm{31}}^2\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:266

約数の個数: 72

約数和(自身を含む): 544513536

約数和(自身を除く): 282844768

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 67, 124, 127, 134, 248, 254, 268, 496, 508, 536, 961, 992, 1016, 1072, 1922, 2032, 2077, 2144, 3844, 3937, 4064, 4154, 7688, 7874, 8308, 8509, 15376, 15748, 16616, 17018, 30752, 31496, 33232, 34036, 62992, 64387, 66464, 68072, 122047, 125984, 128774, 136144, 244094, 257548, 263779, 272288, 488188, 515096, 527558, 976376, 1030192, 1055116, 1952752, 2060384, 2110232, 3905504, 4220464, 8177149, 8440928, 16354298, 32708596, 65417192, 130834384, 261668768]

約数ペア:

[(1, 261668768), (2, 130834384), (4, 65417192), (8, 32708596), (16, 16354298), (31, 8440928), (32, 8177149), (62, 4220464), (67, 3905504), (124, 2110232), (127, 2060384), (134, 1952752), (248, 1055116), (254, 1030192), (268, 976376), (496, 527558), (508, 515096), (536, 488188), (961, 272288), (992, 263779), (1016, 257548), (1072, 244094), (1922, 136144), (2032, 128774), (2077, 125984), (2144, 122047), (3844, 68072), (3937, 66464), (4064, 64387), (4154, 62992), (7688, 34036), (7874, 33232), (8308, 31496), (8509, 30752), (15376, 17018), (15748, 16616)]