28405585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{10163}}^1$

素因数の和:10224

約数の個数: 16

約数和(自身を含む): 37566144

約数和(自身を除く): 9160559

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 10163, 50815, 132119, 437009, 660595, 2185045, 5681117, 28405585]

約数ペア:

[(1, 28405585), (5, 5681117), (13, 2185045), (43, 660595), (65, 437009), (215, 132119), (559, 50815), (2795, 10163)]