20829860

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2351}}^1$

素因数の和:2803

約数の個数: 24

約数和(自身を含む): 43860096

約数和(自身を除く): 23030236

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 2351, 4430, 4702, 8860, 9404, 11755, 23510, 47020, 1041493, 2082986, 4165972, 5207465, 10414930, 20829860]

約数ペア:

[(1, 20829860), (2, 10414930), (4, 5207465), (5, 4165972), (10, 2082986), (20, 1041493), (443, 47020), (886, 23510), (1772, 11755), (2215, 9404), (2351, 8860), (4430, 4702)]