20881460

素因数分解:

$2^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{4481}}^1$

素因数の和:4723

約数の個数: 24

約数和(自身を含む): 44049096

約数和(自身を除く): 23167636

約数列:

[1, 2, 4, 5, 10, 20, 233, 466, 932, 1165, 2330, 4481, 4660, 8962, 17924, 22405, 44810, 89620, 1044073, 2088146, 4176292, 5220365, 10440730, 20881460]

約数ペア:

[(1, 20881460), (2, 10440730), (4, 5220365), (5, 4176292), (10, 2088146), (20, 1044073), (233, 89620), (466, 44810), (932, 22405), (1165, 17924), (2330, 8962), (4481, 4660)]