81672176

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{40193}}^1$

素因数の和:40328

約数の個数: 20

約数和(自身を含む): 159489792

約数和(自身を除く): 77817616

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 40193, 80386, 160772, 321544, 643088, 5104511, 10209022, 20418044, 40836088, 81672176]

約数ペア:

[(1, 81672176), (2, 40836088), (4, 20418044), (8, 10209022), (16, 5104511), (127, 643088), (254, 321544), (508, 160772), (1016, 80386), (2032, 40193)]