20266915

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{907}}^1$

素因数の和:1062

約数の個数: 16

約数和(自身を含む): 25169760

約数和(自身を除く): 4902845

約数列:

[1, 5, 41, 109, 205, 545, 907, 4469, 4535, 22345, 37187, 98863, 185935, 494315, 4053383, 20266915]

約数ペア:

[(1, 20266915), (5, 4053383), (41, 494315), (109, 185935), (205, 98863), (545, 37187), (907, 22345), (4469, 4535)]