20120939995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4240451}}^1$

素因数の和:4240542

約数の個数: 16

約数和(自身を含む): 26358649632

約数和(自身を除く): 6237709637

約数列:

[1, 5, 13, 65, 73, 365, 949, 4745, 4240451, 21202255, 55125863, 275629315, 309552923, 1547764615, 4024187999, 20120939995]

約数ペア:

[(1, 20120939995), (5, 4024187999), (13, 1547764615), (65, 309552923), (73, 275629315), (365, 55125863), (949, 21202255), (4745, 4240451)]