205254220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{101611}}^1$

素因数の和:101721

約数の個数: 24

約数和(自身を含む): 435305808

約数和(自身を除く): 230051588

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 101611, 203222, 406444, 508055, 1016110, 2032220, 10262711, 20525422, 41050844, 51313555, 102627110, 205254220]

約数ペア:

[(1, 205254220), (2, 102627110), (4, 51313555), (5, 41050844), (10, 20525422), (20, 10262711), (101, 2032220), (202, 1016110), (404, 508055), (505, 406444), (1010, 203222), (2020, 101611)]