28543255

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1987}}^1$

素因数の和:2035

約数の個数: 24

約数和(自身を含む): 39290832

約数和(自身を除く): 10747577

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 1987, 2873, 9935, 14365, 25831, 33779, 129155, 168895, 335803, 439127, 1679015, 2195635, 5708651, 28543255]

約数ペア:

[(1, 28543255), (5, 5708651), (13, 2195635), (17, 1679015), (65, 439127), (85, 335803), (169, 168895), (221, 129155), (845, 33779), (1105, 25831), (1987, 14365), (2873, 9935)]