28151240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1259}}^1$

素因数の和:1326

約数の個数: 64

約数和(自身を含む): 69854400

約数和(自身を除く): 41703160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 1118, 1259, 1720, 2236, 2518, 2795, 4472, 5036, 5590, 6295, 10072, 11180, 12590, 16367, 22360, 25180, 32734, 50360, 54137, 65468, 81835, 108274, 130936, 163670, 216548, 270685, 327340, 433096, 541370, 654680, 703781, 1082740, 1407562, 2165480, 2815124, 3518905, 5630248, 7037810, 14075620, 28151240]

約数ペア:

[(1, 28151240), (2, 14075620), (4, 7037810), (5, 5630248), (8, 3518905), (10, 2815124), (13, 2165480), (20, 1407562), (26, 1082740), (40, 703781), (43, 654680), (52, 541370), (65, 433096), (86, 327340), (104, 270685), (130, 216548), (172, 163670), (215, 130936), (260, 108274), (344, 81835), (430, 65468), (520, 54137), (559, 50360), (860, 32734), (1118, 25180), (1259, 22360), (1720, 16367), (2236, 12590), (2518, 11180), (2795, 10072), (4472, 6295), (5036, 5590)]