128508325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{1663}}^1$

素因数の和:1965

約数の個数: 24

約数和(自身を含む): 174560256

約数和(自身を除く): 46051931

約数列:

[1, 5, 11, 25, 55, 275, 281, 1405, 1663, 3091, 7025, 8315, 15455, 18293, 41575, 77275, 91465, 457325, 467303, 2336515, 5140333, 11682575, 25701665, 128508325]

約数ペア:

[(1, 128508325), (5, 25701665), (11, 11682575), (25, 5140333), (55, 2336515), (275, 467303), (281, 457325), (1405, 91465), (1663, 77275), (3091, 41575), (7025, 18293), (8315, 15455)]