13221400540

素因数分解:

$2^2\times 5^1\times {\mathrm{661070027}}^1$

素因数の和:661070036

約数の個数: 12

約数和(自身を含む): 27764941176

約数和(自身を除く): 14543540636

約数列:

[1, 2, 4, 5, 10, 20, 661070027, 1322140054, 2644280108, 3305350135, 6610700270, 13221400540]

約数ペア:

[(1, 13221400540), (2, 6610700270), (4, 3305350135), (5, 2644280108), (10, 1322140054), (20, 661070027)]