256358518

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{2143}}^1$

素因数の和:2308

約数の個数: 32

約数和(自身を含む): 427908096

約数和(自身を除く): 171549578

約数列:

[1, 2, 13, 26, 43, 86, 107, 214, 559, 1118, 1391, 2143, 2782, 4286, 4601, 9202, 27859, 55718, 59813, 92149, 119626, 184298, 229301, 458602, 1197937, 2395874, 2980913, 5961826, 9859943, 19719886, 128179259, 256358518]

約数ペア:

[(1, 256358518), (2, 128179259), (13, 19719886), (26, 9859943), (43, 5961826), (86, 2980913), (107, 2395874), (214, 1197937), (559, 458602), (1118, 229301), (1391, 184298), (2143, 119626), (2782, 92149), (4286, 59813), (4601, 55718), (9202, 27859)]