128179904

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1$

素因数の和:1093

約数の個数: 56

約数和(自身を含む): 266078208

約数和(自身を除く): 137898304

約数列:

[1, 2, 4, 8, 16, 32, 43, 47, 64, 86, 94, 172, 188, 344, 376, 688, 752, 991, 1376, 1504, 1982, 2021, 2752, 3008, 3964, 4042, 7928, 8084, 15856, 16168, 31712, 32336, 42613, 46577, 63424, 64672, 85226, 93154, 129344, 170452, 186308, 340904, 372616, 681808, 745232, 1363616, 1490464, 2002811, 2727232, 2980928, 4005622, 8011244, 16022488, 32044976, 64089952, 128179904]

約数ペア:

[(1, 128179904), (2, 64089952), (4, 32044976), (8, 16022488), (16, 8011244), (32, 4005622), (43, 2980928), (47, 2727232), (64, 2002811), (86, 1490464), (94, 1363616), (172, 745232), (188, 681808), (344, 372616), (376, 340904), (688, 186308), (752, 170452), (991, 129344), (1376, 93154), (1504, 85226), (1982, 64672), (2021, 63424), (2752, 46577), (3008, 42613), (3964, 32336), (4042, 31712), (7928, 16168), (8084, 15856)]