19289380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87679}}^1$

素因数の和:87699

約数の個数: 24

約数和(自身を含む): 44190720

約数和(自身を除く): 24901340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 87679, 175358, 350716, 438395, 876790, 964469, 1753580, 1928938, 3857876, 4822345, 9644690, 19289380]

約数ペア:

[(1, 19289380), (2, 9644690), (4, 4822345), (5, 3857876), (10, 1928938), (11, 1753580), (20, 964469), (22, 876790), (44, 438395), (55, 350716), (110, 175358), (220, 87679)]