25451841620

素因数分解:

$2^2\times 5^1\times {\mathrm{1272592081}}^1$

素因数の和:1272592090

約数の個数: 12

約数和(自身を含む): 53448867444

約数和(自身を除く): 27997025824

約数列:

[1, 2, 4, 5, 10, 20, 1272592081, 2545184162, 5090368324, 6362960405, 12725920810, 25451841620]

約数ペア:

[(1, 25451841620), (2, 12725920810), (4, 6362960405), (5, 5090368324), (10, 2545184162), (20, 1272592081)]