28564525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{431}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 38890368

約数和(自身を除く): 10325843

約数列:

[1, 5, 11, 25, 55, 241, 275, 431, 1205, 2155, 2651, 4741, 6025, 10775, 13255, 23705, 66275, 103871, 118525, 519355, 1142581, 2596775, 5712905, 28564525]

約数ペア:

[(1, 28564525), (5, 5712905), (11, 2596775), (25, 1142581), (55, 519355), (241, 118525), (275, 103871), (431, 66275), (1205, 23705), (2155, 13255), (2651, 10775), (4741, 6025)]