257074384

素因数分解:

$2^4\times 7^3\times {\mathrm{139}}^1\times {\mathrm{337}}^1$

素因数の和:505

約数の個数: 80

約数和(自身を含む): 586768000

約数和(自身を除く): 329693616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 139, 196, 278, 337, 343, 392, 556, 674, 686, 784, 973, 1112, 1348, 1372, 1946, 2224, 2359, 2696, 2744, 3892, 4718, 5392, 5488, 6811, 7784, 9436, 13622, 15568, 16513, 18872, 27244, 33026, 37744, 46843, 47677, 54488, 66052, 93686, 95354, 108976, 115591, 132104, 187372, 190708, 231182, 264208, 327901, 374744, 381416, 462364, 655802, 749488, 762832, 924728, 1311604, 1849456, 2295307, 2623208, 4590614, 5246416, 9181228, 16067149, 18362456, 32134298, 36724912, 64268596, 128537192, 257074384]

約数ペア:

[(1, 257074384), (2, 128537192), (4, 64268596), (7, 36724912), (8, 32134298), (14, 18362456), (16, 16067149), (28, 9181228), (49, 5246416), (56, 4590614), (98, 2623208), (112, 2295307), (139, 1849456), (196, 1311604), (278, 924728), (337, 762832), (343, 749488), (392, 655802), (556, 462364), (674, 381416), (686, 374744), (784, 327901), (973, 264208), (1112, 231182), (1348, 190708), (1372, 187372), (1946, 132104), (2224, 115591), (2359, 108976), (2696, 95354), (2744, 93686), (3892, 66052), (4718, 54488), (5392, 47677), (5488, 46843), (6811, 37744), (7784, 33026), (9436, 27244), (13622, 18872), (15568, 16513)]