28885285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 12483035

約数列:

[1, 5, 11, 13, 55, 65, 71, 143, 355, 569, 715, 781, 923, 2845, 3905, 4615, 6259, 7397, 10153, 31295, 36985, 40399, 50765, 81367, 201995, 406835, 444389, 525187, 2221945, 2625935, 5777057, 28885285]

約数ペア:

[(1, 28885285), (5, 5777057), (11, 2625935), (13, 2221945), (55, 525187), (65, 444389), (71, 406835), (143, 201995), (355, 81367), (569, 50765), (715, 40399), (781, 36985), (923, 31295), (2845, 10153), (3905, 7397), (4615, 6259)]