128214580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{493133}}^1$

素因数の和:493155

約数の個数: 24

約数和(自身を含む): 289962792

約数和(自身を除く): 161748212

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 493133, 986266, 1972532, 2465665, 4931330, 6410729, 9862660, 12821458, 25642916, 32053645, 64107290, 128214580]

約数ペア:

[(1, 128214580), (2, 64107290), (4, 32053645), (5, 25642916), (10, 12821458), (13, 9862660), (20, 6410729), (26, 4931330), (52, 2465665), (65, 1972532), (130, 986266), (260, 493133)]