139032760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{80833}}^1$

素因数の和:80887

約数の個数: 32

約数和(自身を含む): 320102640

約数和(自身を除く): 181069880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 80833, 161666, 323332, 404165, 646664, 808330, 1616660, 3233320, 3475819, 6951638, 13903276, 17379095, 27806552, 34758190, 69516380, 139032760]

約数ペア:

[(1, 139032760), (2, 69516380), (4, 34758190), (5, 27806552), (8, 17379095), (10, 13903276), (20, 6951638), (40, 3475819), (43, 3233320), (86, 1616660), (172, 808330), (215, 646664), (344, 404165), (430, 323332), (860, 161666), (1720, 80833)]