20522980

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4481}}^1$

素因数の和:4719

約数の個数: 24

約数和(自身を含む): 43296120

約数和(自身を除く): 22773140

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4481, 4580, 8962, 17924, 22405, 44810, 89620, 1026149, 2052298, 4104596, 5130745, 10261490, 20522980]

約数ペア:

[(1, 20522980), (2, 10261490), (4, 5130745), (5, 4104596), (10, 2052298), (20, 1026149), (229, 89620), (458, 44810), (916, 22405), (1145, 17924), (2290, 8962), (4481, 4580)]