19194680

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{887}}^1$

素因数の和:1439

約数の個数: 32

約数和(自身を含む): 43316640

約数和(自身を除く): 24121960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 887, 1082, 1774, 2164, 2705, 3548, 4328, 4435, 5410, 7096, 8870, 10820, 17740, 21640, 35480, 479867, 959734, 1919468, 2399335, 3838936, 4798670, 9597340, 19194680]

約数ペア:

[(1, 19194680), (2, 9597340), (4, 4798670), (5, 3838936), (8, 2399335), (10, 1919468), (20, 959734), (40, 479867), (541, 35480), (887, 21640), (1082, 17740), (1774, 10820), (2164, 8870), (2705, 7096), (3548, 5410), (4328, 4435)]