81790072

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{112349}}^1$

素因数の和:112375

約数の個数: 32

約数和(自身を含む): 188748000

約数和(自身を除く): 106957928

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 112349, 224698, 449396, 786443, 898792, 1460537, 1572886, 2921074, 3145772, 5842148, 6291544, 10223759, 11684296, 20447518, 40895036, 81790072]

約数ペア:

[(1, 81790072), (2, 40895036), (4, 20447518), (7, 11684296), (8, 10223759), (13, 6291544), (14, 5842148), (26, 3145772), (28, 2921074), (52, 1572886), (56, 1460537), (91, 898792), (104, 786443), (182, 449396), (364, 224698), (728, 112349)]