87121985

素因数分解:

$5^1\times {\mathrm{179}}^1\times {\mathrm{311}}^1\times {\mathrm{313}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 105805440

約数和(自身を除く): 18683455

約数列:

[1, 5, 179, 311, 313, 895, 1555, 1565, 55669, 56027, 97343, 278345, 280135, 486715, 17424397, 87121985]

約数ペア:

[(1, 87121985), (5, 17424397), (179, 486715), (311, 280135), (313, 278345), (895, 97343), (1555, 56027), (1565, 55669)]