81298310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{280339}}^1$

素因数の和:280375

約数の個数: 16

約数和(自身を含む): 151383600

約数和(自身を除く): 70085290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 280339, 560678, 1401695, 2803390, 8129831, 16259662, 40649155, 81298310]

約数ペア:

[(1, 81298310), (2, 40649155), (5, 16259662), (10, 8129831), (29, 2803390), (58, 1401695), (145, 560678), (290, 280339)]