81771305

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4519}}^1$

素因数の和:4589

約数の個数: 32

約数和(自身を含む): 124968960

約数和(自身を除く): 43197655

約数列:

[1, 5, 7, 11, 35, 47, 55, 77, 235, 329, 385, 517, 1645, 2585, 3619, 4519, 18095, 22595, 31633, 49709, 158165, 212393, 248545, 347963, 1061965, 1486751, 1739815, 2336323, 7433755, 11681615, 16354261, 81771305]

約数ペア:

[(1, 81771305), (5, 16354261), (7, 11681615), (11, 7433755), (35, 2336323), (47, 1739815), (55, 1486751), (77, 1061965), (235, 347963), (329, 248545), (385, 212393), (517, 158165), (1645, 49709), (2585, 31633), (3619, 22595), (4519, 18095)]