80961905

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{1303}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 105686592

約数和(自身を除く): 24724687

約数列:

[1, 5, 17, 43, 85, 215, 289, 731, 1303, 1445, 3655, 6515, 12427, 22151, 56029, 62135, 110755, 280145, 376567, 952493, 1882835, 4762465, 16192381, 80961905]

約数ペア:

[(1, 80961905), (5, 16192381), (17, 4762465), (43, 1882835), (85, 952493), (215, 376567), (289, 280145), (731, 110755), (1303, 62135), (1445, 56029), (3655, 22151), (6515, 12427)]