257063222

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 461873664

約数和(自身を除く): 204810442

約数列:

[1, 2, 13, 17, 26, 31, 34, 62, 73, 146, 221, 257, 403, 442, 514, 527, 806, 949, 1054, 1241, 1898, 2263, 2482, 3341, 4369, 4526, 6682, 6851, 7967, 8738, 13702, 15934, 16133, 18761, 29419, 32266, 37522, 38471, 56797, 58838, 76942, 103571, 113594, 135439, 207142, 243893, 270878, 318937, 487786, 500123, 581591, 637874, 1000246, 1163182, 1760707, 3521414, 4146181, 7560683, 8292362, 9887047, 15121366, 19774094, 128531611, 257063222]

約数ペア:

[(1, 257063222), (2, 128531611), (13, 19774094), (17, 15121366), (26, 9887047), (31, 8292362), (34, 7560683), (62, 4146181), (73, 3521414), (146, 1760707), (221, 1163182), (257, 1000246), (403, 637874), (442, 581591), (514, 500123), (527, 487786), (806, 318937), (949, 270878), (1054, 243893), (1241, 207142), (1898, 135439), (2263, 113594), (2482, 103571), (3341, 76942), (4369, 58838), (4526, 56797), (6682, 38471), (6851, 37522), (7967, 32266), (8738, 29419), (13702, 18761), (15934, 16133)]