20041472

素因数分解:

$2^8\times {\mathrm{11}}^2\times {\mathrm{647}}^1$

素因数の和:685

約数の個数: 54

約数和(自身を含む): 44040024

約数和(自身を除く): 23998552

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 121, 128, 176, 242, 256, 352, 484, 647, 704, 968, 1294, 1408, 1936, 2588, 2816, 3872, 5176, 7117, 7744, 10352, 14234, 15488, 20704, 28468, 30976, 41408, 56936, 78287, 82816, 113872, 156574, 165632, 227744, 313148, 455488, 626296, 910976, 1252592, 1821952, 2505184, 5010368, 10020736, 20041472]

約数ペア:

[(1, 20041472), (2, 10020736), (4, 5010368), (8, 2505184), (11, 1821952), (16, 1252592), (22, 910976), (32, 626296), (44, 455488), (64, 313148), (88, 227744), (121, 165632), (128, 156574), (176, 113872), (242, 82816), (256, 78287), (352, 56936), (484, 41408), (647, 30976), (704, 28468), (968, 20704), (1294, 15488), (1408, 14234), (1936, 10352), (2588, 7744), (2816, 7117), (3872, 5176)]