81140072

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{780193}}^1$

素因数の和:780212

約数の個数: 16

約数和(自身を含む): 163840740

約数和(自身を除く): 82700668

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 780193, 1560386, 3120772, 6241544, 10142509, 20285018, 40570036, 81140072]

約数ペア:

[(1, 81140072), (2, 40570036), (4, 20285018), (8, 10142509), (13, 6241544), (26, 3120772), (52, 1560386), (104, 780193)]