28256935

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 11805017

約数列:

[1, 5, 7, 35, 71, 83, 137, 355, 415, 497, 581, 685, 959, 2485, 2905, 4795, 5893, 9727, 11371, 29465, 41251, 48635, 56855, 68089, 79597, 206255, 340445, 397985, 807341, 4036705, 5651387, 28256935]

約数ペア:

[(1, 28256935), (5, 5651387), (7, 4036705), (35, 807341), (71, 397985), (83, 340445), (137, 206255), (355, 79597), (415, 68089), (497, 56855), (581, 48635), (685, 41251), (959, 29465), (2485, 11371), (2905, 9727), (4795, 5893)]