201666140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{775639}}^1$

素因数の和:775661

約数の個数: 24

約数和(自身を含む): 456076320

約数和(自身を除く): 254410180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 775639, 1551278, 3102556, 3878195, 7756390, 10083307, 15512780, 20166614, 40333228, 50416535, 100833070, 201666140]

約数ペア:

[(1, 201666140), (2, 100833070), (4, 50416535), (5, 40333228), (10, 20166614), (13, 15512780), (20, 10083307), (26, 7756390), (52, 3878195), (65, 3102556), (130, 1551278), (260, 775639)]