18725380

素因数分解:

$2^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{1663}}^1$

素因数の和:2235

約数の個数: 24

約数和(自身を含む): 39416832

約数和(自身を除く): 20691452

約数列:

[1, 2, 4, 5, 10, 20, 563, 1126, 1663, 2252, 2815, 3326, 5630, 6652, 8315, 11260, 16630, 33260, 936269, 1872538, 3745076, 4681345, 9362690, 18725380]

約数ペア:

[(1, 18725380), (2, 9362690), (4, 4681345), (5, 3745076), (10, 1872538), (20, 936269), (563, 33260), (1126, 16630), (1663, 11260), (2252, 8315), (2815, 6652), (3326, 5630)]