68540980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{180371}}^1$

素因数の和:180399

約数の個数: 24

約数和(自身を含む): 151512480

約数和(自身を除く): 82971500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 180371, 360742, 721484, 901855, 1803710, 3427049, 3607420, 6854098, 13708196, 17135245, 34270490, 68540980]

約数ペア:

[(1, 68540980), (2, 34270490), (4, 17135245), (5, 13708196), (10, 6854098), (19, 3607420), (20, 3427049), (38, 1803710), (76, 901855), (95, 721484), (190, 360742), (380, 180371)]