257475894

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{8191}}^1$

素因数の和:8253

約数の個数: 48

約数和(自身を含む): 575668224

約数和(自身を除く): 318192330

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 169, 186, 338, 403, 507, 806, 1014, 1209, 2418, 5239, 8191, 10478, 15717, 16382, 24573, 31434, 49146, 106483, 212966, 253921, 319449, 507842, 638898, 761763, 1384279, 1523526, 2768558, 3300973, 4152837, 6601946, 8305674, 9902919, 19805838, 42912649, 85825298, 128737947, 257475894]

約数ペア:

[(1, 257475894), (2, 128737947), (3, 85825298), (6, 42912649), (13, 19805838), (26, 9902919), (31, 8305674), (39, 6601946), (62, 4152837), (78, 3300973), (93, 2768558), (169, 1523526), (186, 1384279), (338, 761763), (403, 638898), (507, 507842), (806, 319449), (1014, 253921), (1209, 212966), (2418, 106483), (5239, 49146), (8191, 31434), (10478, 24573), (15717, 16382)]