27980840

素因数分解:

$2^3\times 5^1\times {\mathrm{699521}}^1$

素因数の和:699532

約数の個数: 16

約数和(自身を含む): 62956980

約数和(自身を除く): 34976140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 699521, 1399042, 2798084, 3497605, 5596168, 6995210, 13990420, 27980840]

約数ペア:

[(1, 27980840), (2, 13990420), (4, 6995210), (5, 5596168), (8, 3497605), (10, 2798084), (20, 1399042), (40, 699521)]