18758768

素因数分解:

$2^4\times 7^2\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:430

約数の個数: 60

約数和(自身を含む): 43001712

約数和(自身を除く): 24242944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 71, 98, 112, 142, 196, 284, 337, 392, 497, 568, 674, 784, 994, 1136, 1348, 1988, 2359, 2696, 3479, 3976, 4718, 5392, 6958, 7952, 9436, 13916, 16513, 18872, 23927, 27832, 33026, 37744, 47854, 55664, 66052, 95708, 132104, 167489, 191416, 264208, 334978, 382832, 669956, 1172423, 1339912, 2344846, 2679824, 4689692, 9379384, 18758768]

約数ペア:

[(1, 18758768), (2, 9379384), (4, 4689692), (7, 2679824), (8, 2344846), (14, 1339912), (16, 1172423), (28, 669956), (49, 382832), (56, 334978), (71, 264208), (98, 191416), (112, 167489), (142, 132104), (196, 95708), (284, 66052), (337, 55664), (392, 47854), (497, 37744), (568, 33026), (674, 27832), (784, 23927), (994, 18872), (1136, 16513), (1348, 13916), (1988, 9436), (2359, 7952), (2696, 6958), (3479, 5392), (3976, 4718)]