2021448080

素因数分解:

$2^4\times 5^1\times {\mathrm{25268101}}^1$

素因数の和:25268114

約数の個数: 20

約数和(自身を含む): 4699866972

約数和(自身を除く): 2678418892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25268101, 50536202, 101072404, 126340505, 202144808, 252681010, 404289616, 505362020, 1010724040, 2021448080]

約数ペア:

[(1, 2021448080), (2, 1010724040), (4, 505362020), (5, 404289616), (8, 252681010), (10, 202144808), (16, 126340505), (20, 101072404), (40, 50536202), (80, 25268101)]