20258740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9293}}^1$

素因数の和:9411

約数の個数: 24

約数和(自身を含む): 42938280

約数和(自身を除く): 22679540

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 9293, 18586, 37172, 46465, 92930, 185860, 1012937, 2025874, 4051748, 5064685, 10129370, 20258740]

約数ペア:

[(1, 20258740), (2, 10129370), (4, 5064685), (5, 4051748), (10, 2025874), (20, 1012937), (109, 185860), (218, 92930), (436, 46465), (545, 37172), (1090, 18586), (2180, 9293)]