20201621870

素因数分解:

$2^1\times 5^1\times {\mathrm{4759}}^1\times {\mathrm{424493}}^1$

素因数の和:429259

約数の個数: 16

約数和(自身を含む): 36370645920

約数和(自身を除く): 16169024050

約数列:

[1, 2, 5, 10, 4759, 9518, 23795, 47590, 424493, 848986, 2122465, 4244930, 2020162187, 4040324374, 10100810935, 20201621870]

約数ペア:

[(1, 20201621870), (2, 10100810935), (5, 4040324374), (10, 2020162187), (4759, 4244930), (9518, 2122465), (23795, 848986), (47590, 424493)]