20794420

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2347}}^1$

素因数の和:2799

約数の個数: 24

約数和(自身を含む): 43785504

約数和(自身を除く): 22991084

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 2347, 4430, 4694, 8860, 9388, 11735, 23470, 46940, 1039721, 2079442, 4158884, 5198605, 10397210, 20794420]

約数ペア:

[(1, 20794420), (2, 10397210), (4, 5198605), (5, 4158884), (10, 2079442), (20, 1039721), (443, 46940), (886, 23470), (1772, 11735), (2215, 9388), (2347, 8860), (4430, 4694)]