28265775

素因数分解:

$3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{3659}}^1$

素因数の和:3775

約数の個数: 24

約数和(自身を含む): 47199360

約数和(自身を除く): 18933585

約数列:

[1, 3, 5, 15, 25, 75, 103, 309, 515, 1545, 2575, 3659, 7725, 10977, 18295, 54885, 91475, 274425, 376877, 1130631, 1884385, 5653155, 9421925, 28265775]

約数ペア:

[(1, 28265775), (3, 9421925), (5, 5653155), (15, 1884385), (25, 1130631), (75, 376877), (103, 274425), (309, 91475), (515, 54885), (1545, 18295), (2575, 10977), (3659, 7725)]