71045080

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{6911}}^1$

素因数の和:7179

約数の個数: 32

約数和(自身を含む): 160496640

約数和(自身を除く): 89451560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 6911, 10280, 13822, 27644, 34555, 55288, 69110, 138220, 276440, 1776127, 3552254, 7104508, 8880635, 14209016, 17761270, 35522540, 71045080]

約数ペア:

[(1, 71045080), (2, 35522540), (4, 17761270), (5, 14209016), (8, 8880635), (10, 7104508), (20, 3552254), (40, 1776127), (257, 276440), (514, 138220), (1028, 69110), (1285, 55288), (2056, 34555), (2570, 27644), (5140, 13822), (6911, 10280)]