19897009744

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40114939}}^1$

素因数の和:40114978

約数の個数: 20

約数和(自身を含む): 39794020480

約数和(自身を除く): 19897010736

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40114939, 80229878, 160459756, 320919512, 641839024, 1243563109, 2487126218, 4974252436, 9948504872, 19897009744]

約数ペア:

[(1, 19897009744), (2, 9948504872), (4, 4974252436), (8, 2487126218), (16, 1243563109), (31, 641839024), (62, 320919512), (124, 160459756), (248, 80229878), (496, 40114939)]