20512197895

素因数分解:

$5^1\times 7^1\times {\mathrm{743}}^1\times {\mathrm{788779}}^1$

素因数の和:789534

約数の個数: 16

約数和(自身を含む): 28168911360

約数和(自身を除く): 7656713465

約数列:

[1, 5, 7, 35, 743, 3715, 5201, 26005, 788779, 3943895, 5521453, 27607265, 586062797, 2930313985, 4102439579, 20512197895]

約数ペア:

[(1, 20512197895), (5, 4102439579), (7, 2930313985), (35, 586062797), (743, 27607265), (3715, 5521453), (5201, 3943895), (26005, 788779)]