20725805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2237}}^1$

素因数の和:2368

約数の個数: 16

約数和(自身を含む): 26587440

約数和(自身を除く): 5861635

約数列:

[1, 5, 17, 85, 109, 545, 1853, 2237, 9265, 11185, 38029, 190145, 243833, 1219165, 4145161, 20725805]

約数ペア:

[(1, 20725805), (5, 4145161), (17, 1219165), (85, 243833), (109, 190145), (545, 38029), (1853, 11185), (2237, 9265)]