278315931020

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{21709511}}^1$

素因数の和:21710161

約数の個数: 24

約数和(自身を含む): 585375281568

約数和(自身を除く): 307059350548

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 21709511, 43419022, 86838044, 108547555, 217095110, 434190220, 13915796551, 27831593102, 55663186204, 69578982755, 139157965510, 278315931020]

約数ペア:

[(1, 278315931020), (2, 139157965510), (4, 69578982755), (5, 55663186204), (10, 27831593102), (20, 13915796551), (641, 434190220), (1282, 217095110), (2564, 108547555), (3205, 86838044), (6410, 43419022), (12820, 21709511)]