20655136

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{883}}^1$

素因数の和:953

約数の個数: 48

約数和(自身を含む): 44108064

約数和(自身を除く): 23452928

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 68, 86, 136, 172, 272, 344, 544, 688, 731, 883, 1376, 1462, 1766, 2924, 3532, 5848, 7064, 11696, 14128, 15011, 23392, 28256, 30022, 37969, 60044, 75938, 120088, 151876, 240176, 303752, 480352, 607504, 645473, 1215008, 1290946, 2581892, 5163784, 10327568, 20655136]

約数ペア:

[(1, 20655136), (2, 10327568), (4, 5163784), (8, 2581892), (16, 1290946), (17, 1215008), (32, 645473), (34, 607504), (43, 480352), (68, 303752), (86, 240176), (136, 151876), (172, 120088), (272, 75938), (344, 60044), (544, 37969), (688, 30022), (731, 28256), (883, 23392), (1376, 15011), (1462, 14128), (1766, 11696), (2924, 7064), (3532, 5848)]