28206178

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:299

約数の個数: 64

約数和(自身を含む): 57883392

約数和(自身を除く): 29677214

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 73, 77, 91, 143, 146, 154, 182, 193, 286, 386, 511, 803, 949, 1001, 1022, 1351, 1606, 1898, 2002, 2123, 2509, 2702, 4246, 5018, 5621, 6643, 10439, 11242, 13286, 14089, 14861, 17563, 20878, 27599, 28178, 29722, 35126, 55198, 73073, 98623, 146146, 154979, 183157, 193193, 197246, 309958, 366314, 386386, 1084853, 1282099, 2014727, 2169706, 2564198, 4029454, 14103089, 28206178]

約数ペア:

[(1, 28206178), (2, 14103089), (7, 4029454), (11, 2564198), (13, 2169706), (14, 2014727), (22, 1282099), (26, 1084853), (73, 386386), (77, 366314), (91, 309958), (143, 197246), (146, 193193), (154, 183157), (182, 154979), (193, 146146), (286, 98623), (386, 73073), (511, 55198), (803, 35126), (949, 29722), (1001, 28178), (1022, 27599), (1351, 20878), (1606, 17563), (1898, 14861), (2002, 14089), (2123, 13286), (2509, 11242), (2702, 10439), (4246, 6643), (5018, 5621)]