257041456

素因数分解:

$2^4\times 7^4\times {\mathrm{6691}}^1$

素因数の和:6727

約数の個数: 50

約数和(自身を含む): 581073052

約数和(自身を除く): 324031596

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2401, 2744, 4802, 5488, 6691, 9604, 13382, 19208, 26764, 38416, 46837, 53528, 93674, 107056, 187348, 327859, 374696, 655718, 749392, 1311436, 2295013, 2622872, 4590026, 5245744, 9180052, 16065091, 18360104, 32130182, 36720208, 64260364, 128520728, 257041456]

約数ペア:

[(1, 257041456), (2, 128520728), (4, 64260364), (7, 36720208), (8, 32130182), (14, 18360104), (16, 16065091), (28, 9180052), (49, 5245744), (56, 4590026), (98, 2622872), (112, 2295013), (196, 1311436), (343, 749392), (392, 655718), (686, 374696), (784, 327859), (1372, 187348), (2401, 107056), (2744, 93674), (4802, 53528), (5488, 46837), (6691, 38416), (9604, 26764), (13382, 19208)]