1279405580

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{243233}}^1$

素因数の和:243505

約数の個数: 24

約数和(自身を含む): 2696978592

約数和(自身を除く): 1417573012

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 5260, 243233, 486466, 972932, 1216165, 2432330, 4864660, 63970279, 127940558, 255881116, 319851395, 639702790, 1279405580]

約数ペア:

[(1, 1279405580), (2, 639702790), (4, 319851395), (5, 255881116), (10, 127940558), (20, 63970279), (263, 4864660), (526, 2432330), (1052, 1216165), (1315, 972932), (2630, 486466), (5260, 243233)]