28440265

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{19819}}^1$

素因数の和:19872

約数の個数: 16

約数和(自身を含む): 39957120

約数和(自身を除く): 11516855

約数列:

[1, 5, 7, 35, 41, 205, 287, 1435, 19819, 99095, 138733, 693665, 812579, 4062895, 5688053, 28440265]

約数ペア:

[(1, 28440265), (5, 5688053), (7, 4062895), (35, 812579), (41, 693665), (205, 138733), (287, 99095), (1435, 19819)]