20646610

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3221}}^1$

素因数の和:3869

約数の個数: 16

約数和(自身を含む): 37233432

約数和(自身を除く): 16586822

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 3221, 6410, 6442, 16105, 32210, 2064661, 4129322, 10323305, 20646610]

約数ペア:

[(1, 20646610), (2, 10323305), (5, 4129322), (10, 2064661), (641, 32210), (1282, 16105), (3205, 6442), (3221, 6410)]