80540068

素因数分解:

$2^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{10937}}^1$

素因数の和:11211

約数の個数: 24

約数和(自身を含む): 161707392

約数和(自身を除く): 81167324

約数列:

[1, 2, 4, 7, 14, 28, 263, 526, 1052, 1841, 3682, 7364, 10937, 21874, 43748, 76559, 153118, 306236, 2876431, 5752862, 11505724, 20135017, 40270034, 80540068]

約数ペア:

[(1, 80540068), (2, 40270034), (4, 20135017), (7, 11505724), (14, 5752862), (28, 2876431), (263, 306236), (526, 153118), (1052, 76559), (1841, 43748), (3682, 21874), (7364, 10937)]