20855470

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{50867}}^1$

素因数の和:50915

約数の個数: 16

約数和(自身を含む): 38456208

約数和(自身を除く): 17600738

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 50867, 101734, 254335, 508670, 2085547, 4171094, 10427735, 20855470]

約数ペア:

[(1, 20855470), (2, 10427735), (5, 4171094), (10, 2085547), (41, 508670), (82, 254335), (205, 101734), (410, 50867)]