20160921925

素因数分解:

$5^2\times {\mathrm{2053}}^1\times {\mathrm{392809}}^1$

素因数の和:394872

約数の個数: 12

約数和(自身を含む): 25011783940

約数和(自身を除く): 4850862015

約数列:

[1, 5, 25, 2053, 10265, 51325, 392809, 1964045, 9820225, 806436877, 4032184385, 20160921925]

約数ペア:

[(1, 20160921925), (5, 4032184385), (25, 806436877), (2053, 9820225), (10265, 1964045), (51325, 392809)]