79658020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{306377}}^1$

素因数の和:306399

約数の個数: 24

約数和(自身を含む): 180150264

約数和(自身を除く): 100492244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 306377, 612754, 1225508, 1531885, 3063770, 3982901, 6127540, 7965802, 15931604, 19914505, 39829010, 79658020]

約数ペア:

[(1, 79658020), (2, 39829010), (4, 19914505), (5, 15931604), (10, 7965802), (13, 6127540), (20, 3982901), (26, 3063770), (52, 1531885), (65, 1225508), (130, 612754), (260, 306377)]