203411920

素因数分解:

$2^4\times 5^1\times {\mathrm{2542649}}^1$

素因数の和:2542662

約数の個数: 20

約数和(自身を含む): 472932900

約数和(自身を除く): 269520980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2542649, 5085298, 10170596, 12713245, 20341192, 25426490, 40682384, 50852980, 101705960, 203411920]

約数ペア:

[(1, 203411920), (2, 101705960), (4, 50852980), (5, 40682384), (8, 25426490), (10, 20341192), (16, 12713245), (20, 10170596), (40, 5085298), (80, 2542649)]