27997975

素因数分解:

$5^2\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 35747712

約数和(自身を除く): 7749737

約数列:

[1, 5, 25, 83, 103, 131, 415, 515, 655, 2075, 2575, 3275, 8549, 10873, 13493, 42745, 54365, 67465, 213725, 271825, 337325, 1119919, 5599595, 27997975]

約数ペア:

[(1, 27997975), (5, 5599595), (25, 1119919), (83, 337325), (103, 271825), (131, 213725), (415, 67465), (515, 54365), (655, 42745), (2075, 13493), (2575, 10873), (3275, 8549)]