2105805220

素因数分解:

$2^2\times 5^1\times {\mathrm{105290261}}^1$

素因数の和:105290270

約数の個数: 12

約数和(自身を含む): 4422191004

約数和(自身を除く): 2316385784

約数列:

[1, 2, 4, 5, 10, 20, 105290261, 210580522, 421161044, 526451305, 1052902610, 2105805220]

約数ペア:

[(1, 2105805220), (2, 1052902610), (4, 526451305), (5, 421161044), (10, 210580522), (20, 105290261)]