90987815

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{4987}}^1$

素因数の和:5122

約数の個数: 16

約数和(自身を含む): 113127840

約数和(自身を除く): 22140025

約数列:

[1, 5, 41, 89, 205, 445, 3649, 4987, 18245, 24935, 204467, 443843, 1022335, 2219215, 18197563, 90987815]

約数ペア:

[(1, 90987815), (5, 18197563), (41, 2219215), (89, 1022335), (205, 443843), (445, 204467), (3649, 24935), (4987, 18245)]