20121664045

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{12583}}^1$

素因数の和:12770

約数の個数: 48

約数和(自身を含む): 28817762688

約数和(自身を除く): 8696098643

約数列:

[1, 5, 7, 35, 49, 61, 107, 245, 305, 427, 535, 749, 2135, 2989, 3745, 5243, 6527, 12583, 14945, 26215, 32635, 45689, 62915, 88081, 228445, 319823, 440405, 616567, 767563, 1346381, 1599115, 3082835, 3837815, 5372941, 6731905, 9424667, 26864705, 37610587, 47123335, 65972669, 82129241, 188052935, 329863345, 410646205, 574904687, 2874523435, 4024332809, 20121664045]

約数ペア:

[(1, 20121664045), (5, 4024332809), (7, 2874523435), (35, 574904687), (49, 410646205), (61, 329863345), (107, 188052935), (245, 82129241), (305, 65972669), (427, 47123335), (535, 37610587), (749, 26864705), (2135, 9424667), (2989, 6731905), (3745, 5372941), (5243, 3837815), (6527, 3082835), (12583, 1599115), (14945, 1346381), (26215, 767563), (32635, 616567), (45689, 440405), (62915, 319823), (88081, 228445)]