28132905

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 46126080

約数和(自身を除く): 17993175

約数列:

[1, 3, 5, 15, 103, 131, 139, 309, 393, 417, 515, 655, 695, 1545, 1965, 2085, 13493, 14317, 18209, 40479, 42951, 54627, 67465, 71585, 91045, 202395, 214755, 273135, 1875527, 5626581, 9377635, 28132905]

約数ペア:

[(1, 28132905), (3, 9377635), (5, 5626581), (15, 1875527), (103, 273135), (131, 214755), (139, 202395), (309, 91045), (393, 71585), (417, 67465), (515, 54627), (655, 42951), (695, 40479), (1545, 18209), (1965, 14317), (2085, 13493)]