201980840975

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{197054479}}^1$

素因数の和:197054530

約数の個数: 12

約数和(自身を含む): 256564932960

約数和(自身を除く): 54584091985

約数列:

[1, 5, 25, 41, 205, 1025, 197054479, 985272395, 4926361975, 8079233639, 40396168195, 201980840975]

約数ペア:

[(1, 201980840975), (5, 40396168195), (25, 8079233639), (41, 4926361975), (205, 985272395), (1025, 197054479)]