28086604

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 62831328

約数和(自身を除く): 34744724

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 73, 91, 98, 146, 151, 182, 196, 292, 302, 364, 511, 604, 637, 949, 1022, 1057, 1274, 1898, 1963, 2044, 2114, 2548, 3577, 3796, 3926, 4228, 6643, 7154, 7399, 7852, 11023, 13286, 13741, 14308, 14798, 22046, 26572, 27482, 29596, 44092, 46501, 54964, 77161, 93002, 96187, 143299, 154322, 186004, 192374, 286598, 308644, 384748, 540127, 573196, 1003093, 1080254, 2006186, 2160508, 4012372, 7021651, 14043302, 28086604]

約数ペア:

[(1, 28086604), (2, 14043302), (4, 7021651), (7, 4012372), (13, 2160508), (14, 2006186), (26, 1080254), (28, 1003093), (49, 573196), (52, 540127), (73, 384748), (91, 308644), (98, 286598), (146, 192374), (151, 186004), (182, 154322), (196, 143299), (292, 96187), (302, 93002), (364, 77161), (511, 54964), (604, 46501), (637, 44092), (949, 29596), (1022, 27482), (1057, 26572), (1274, 22046), (1898, 14798), (1963, 14308), (2044, 13741), (2114, 13286), (2548, 11023), (3577, 7852), (3796, 7399), (3926, 7154), (4228, 6643)]