12906140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49639}}^1$

素因数の和:49661

約数の個数: 24

約数和(自身を含む): 29188320

約数和(自身を除く): 16282180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49639, 99278, 198556, 248195, 496390, 645307, 992780, 1290614, 2581228, 3226535, 6453070, 12906140]

約数ペア:

[(1, 12906140), (2, 6453070), (4, 3226535), (5, 2581228), (10, 1290614), (13, 992780), (20, 645307), (26, 496390), (52, 248195), (65, 198556), (130, 99278), (260, 49639)]