20486845

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{569}}^1$

素因数の和:972

約数の個数: 16

約数和(自身を含む): 25992000

約数和(自身を除く): 5505155

約数列:

[1, 5, 19, 95, 379, 569, 1895, 2845, 7201, 10811, 36005, 54055, 215651, 1078255, 4097369, 20486845]

約数ペア:

[(1, 20486845), (5, 4097369), (19, 1078255), (95, 215651), (379, 54055), (569, 36005), (1895, 10811), (2845, 7201)]