20512071997540

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4255616597}}^1$

素因数の和:4255616847

約数の個数: 24

約数和(自身を含む): 43254087102072

約数和(自身を除く): 22742015104532

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4820, 4255616597, 8511233194, 17022466388, 21278082985, 42556165970, 85112331940, 1025603599877, 2051207199754, 4102414399508, 5128017999385, 10256035998770, 20512071997540]

約数ペア:

[(1, 20512071997540), (2, 10256035998770), (4, 5128017999385), (5, 4102414399508), (10, 2051207199754), (20, 1025603599877), (241, 85112331940), (482, 42556165970), (964, 21278082985), (1205, 17022466388), (2410, 8511233194), (4820, 4255616597)]