28326655

素因数分解:

$5^1\times 7^3\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 11993345

約数列:

[1, 5, 7, 35, 49, 83, 199, 245, 343, 415, 581, 995, 1393, 1715, 2905, 4067, 6965, 9751, 16517, 20335, 28469, 48755, 68257, 82585, 115619, 142345, 341285, 578095, 809333, 4046665, 5665331, 28326655]

約数ペア:

[(1, 28326655), (5, 5665331), (7, 4046665), (35, 809333), (49, 578095), (83, 341285), (199, 142345), (245, 115619), (343, 82585), (415, 68257), (581, 48755), (995, 28469), (1393, 20335), (1715, 16517), (2905, 9751), (4067, 6965)]