28807856

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:442

約数の個数: 80

約数和(自身を含む): 70828800

約数和(自身を除く): 42020944

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 67, 77, 88, 112, 134, 154, 176, 268, 308, 349, 469, 536, 616, 698, 737, 938, 1072, 1232, 1396, 1474, 1876, 2443, 2792, 2948, 3752, 3839, 4886, 5159, 5584, 5896, 7504, 7678, 9772, 10318, 11792, 15356, 19544, 20636, 23383, 26873, 30712, 39088, 41272, 46766, 53746, 61424, 82544, 93532, 107492, 163681, 187064, 214984, 257213, 327362, 374128, 429968, 514426, 654724, 1028852, 1309448, 1800491, 2057704, 2618896, 3600982, 4115408, 7201964, 14403928, 28807856]

約数ペア:

[(1, 28807856), (2, 14403928), (4, 7201964), (7, 4115408), (8, 3600982), (11, 2618896), (14, 2057704), (16, 1800491), (22, 1309448), (28, 1028852), (44, 654724), (56, 514426), (67, 429968), (77, 374128), (88, 327362), (112, 257213), (134, 214984), (154, 187064), (176, 163681), (268, 107492), (308, 93532), (349, 82544), (469, 61424), (536, 53746), (616, 46766), (698, 41272), (737, 39088), (938, 30712), (1072, 26873), (1232, 23383), (1396, 20636), (1474, 19544), (1876, 15356), (2443, 11792), (2792, 10318), (2948, 9772), (3752, 7678), (3839, 7504), (4886, 5896), (5159, 5584)]