65426140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251639}}^1$

素因数の和:251661

約数の個数: 24

約数和(自身を含む): 147964320

約数和(自身を除く): 82538180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 251639, 503278, 1006556, 1258195, 2516390, 3271307, 5032780, 6542614, 13085228, 16356535, 32713070, 65426140]

約数ペア:

[(1, 65426140), (2, 32713070), (4, 16356535), (5, 13085228), (10, 6542614), (13, 5032780), (20, 3271307), (26, 2516390), (52, 1258195), (65, 1006556), (130, 503278), (260, 251639)]