1227340

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{563}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 2605680

約数和(自身を除く): 1378340

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 563, 1090, 1126, 2180, 2252, 2815, 5630, 11260, 61367, 122734, 245468, 306835, 613670, 1227340]

約数ペア:

[(1, 1227340), (2, 613670), (4, 306835), (5, 245468), (10, 122734), (20, 61367), (109, 11260), (218, 5630), (436, 2815), (545, 2252), (563, 2180), (1090, 1126)]