80623820

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{20887}}^1$

素因数の和:21089

約数の個数: 24

約数和(自身を含む): 170195424

約数和(自身を除く): 89571604

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 20887, 41774, 83548, 104435, 208870, 417740, 4031191, 8062382, 16124764, 20155955, 40311910, 80623820]

約数ペア:

[(1, 80623820), (2, 40311910), (4, 20155955), (5, 16124764), (10, 8062382), (20, 4031191), (193, 417740), (386, 208870), (772, 104435), (965, 83548), (1930, 41774), (3860, 20887)]