20512223080

素因数分解:

$2^3\times 5^1\times {\mathrm{512805577}}^1$

素因数の和:512805588

約数の個数: 16

約数和(自身を含む): 46152502020

約数和(自身を除く): 25640278940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512805577, 1025611154, 2051222308, 2564027885, 4102444616, 5128055770, 10256111540, 20512223080]

約数ペア:

[(1, 20512223080), (2, 10256111540), (4, 5128055770), (5, 4102444616), (8, 2564027885), (10, 2051222308), (20, 1025611154), (40, 512805577)]