68842540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{264779}}^1$

素因数の和:264801

約数の個数: 24

約数和(自身を含む): 155690640

約数和(自身を除く): 86848100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 264779, 529558, 1059116, 1323895, 2647790, 3442127, 5295580, 6884254, 13768508, 17210635, 34421270, 68842540]

約数ペア:

[(1, 68842540), (2, 34421270), (4, 17210635), (5, 13768508), (10, 6884254), (13, 5295580), (20, 3442127), (26, 2647790), (52, 1323895), (65, 1059116), (130, 529558), (260, 264779)]