257156949

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{337}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 416145600

約数和(自身を除く): 158988651

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 179, 203, 337, 537, 609, 1011, 1253, 1421, 2359, 3759, 4263, 5191, 7077, 8771, 9773, 15573, 16513, 26313, 29319, 36337, 49539, 60323, 68411, 109011, 180969, 205233, 254359, 422261, 478877, 763077, 1266783, 1436631, 1749367, 2955827, 5248101, 8867481, 12245569, 36736707, 85718983, 257156949]

約数ペア:

[(1, 257156949), (3, 85718983), (7, 36736707), (21, 12245569), (29, 8867481), (49, 5248101), (87, 2955827), (147, 1749367), (179, 1436631), (203, 1266783), (337, 763077), (537, 478877), (609, 422261), (1011, 254359), (1253, 205233), (1421, 180969), (2359, 109011), (3759, 68411), (4263, 60323), (5191, 49539), (7077, 36337), (8771, 29319), (9773, 26313), (15573, 16513)]