39991985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{3691}}^1$

素因数の和:3904

約数の個数: 16

約数和(自身を含む): 52633152

約数和(自身を除く): 12641167

約数列:

[1, 5, 11, 55, 197, 985, 2167, 3691, 10835, 18455, 40601, 203005, 727127, 3635635, 7998397, 39991985]

約数ペア:

[(1, 39991985), (5, 7998397), (11, 3635635), (55, 727127), (197, 203005), (985, 40601), (2167, 18455), (3691, 10835)]