81312340

素因数分解:

$2^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{17449}}^1$

素因数の和:17691

約数の個数: 24

約数和(自身を含む): 171498600

約数和(自身を除く): 90186260

約数列:

[1, 2, 4, 5, 10, 20, 233, 466, 932, 1165, 2330, 4660, 17449, 34898, 69796, 87245, 174490, 348980, 4065617, 8131234, 16262468, 20328085, 40656170, 81312340]

約数ペア:

[(1, 81312340), (2, 40656170), (4, 20328085), (5, 16262468), (10, 8131234), (20, 4065617), (233, 348980), (466, 174490), (932, 87245), (1165, 69796), (2330, 34898), (4660, 17449)]