20668510

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{50411}}^1$

素因数の和:50459

約数の個数: 16

約数和(自身を含む): 38111472

約数和(自身を除く): 17442962

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 50411, 100822, 252055, 504110, 2066851, 4133702, 10334255, 20668510]

約数ペア:

[(1, 20668510), (2, 10334255), (5, 4133702), (10, 2066851), (41, 504110), (82, 252055), (205, 100822), (410, 50411)]