66486440

素因数分解:

$2^3\times 5^1\times {\mathrm{1662161}}^1$

素因数の和:1662172

約数の個数: 16

約数和(自身を含む): 149594580

約数和(自身を除く): 83108140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1662161, 3324322, 6648644, 8310805, 13297288, 16621610, 33243220, 66486440]

約数ペア:

[(1, 66486440), (2, 33243220), (4, 16621610), (5, 13297288), (8, 8310805), (10, 6648644), (20, 3324322), (40, 1662161)]