19460780

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1097}}^1$

素因数の和:1993

約数の個数: 24

約数和(自身を含む): 40951008

約数和(自身を除く): 21490228

約数列:

[1, 2, 4, 5, 10, 20, 887, 1097, 1774, 2194, 3548, 4388, 4435, 5485, 8870, 10970, 17740, 21940, 973039, 1946078, 3892156, 4865195, 9730390, 19460780]

約数ペア:

[(1, 19460780), (2, 9730390), (4, 4865195), (5, 3892156), (10, 1946078), (20, 973039), (887, 21940), (1097, 17740), (1774, 10970), (2194, 8870), (3548, 5485), (4388, 4435)]