87660881

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1061}}^1$

素因数の和:1145

約数の個数: 32

約数和(自身を含む): 116225280

約数和(自身を除く): 28564399

約数列:

[1, 7, 11, 29, 37, 77, 203, 259, 319, 407, 1061, 1073, 2233, 2849, 7427, 7511, 11671, 11803, 30769, 39257, 81697, 82621, 215383, 274799, 338459, 431827, 1138453, 2369213, 3022789, 7969171, 12522983, 87660881]

約数ペア:

[(1, 87660881), (7, 12522983), (11, 7969171), (29, 3022789), (37, 2369213), (77, 1138453), (203, 431827), (259, 338459), (319, 274799), (407, 215383), (1061, 82621), (1073, 81697), (2233, 39257), (2849, 30769), (7427, 11803), (7511, 11671)]