87165080

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{3389}}^1$

素因数の和:4043

約数の個数: 32

約数和(自身を含む): 196484400

約数和(自身を除く): 109319320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 3389, 5144, 6430, 6778, 12860, 13556, 16945, 25720, 27112, 33890, 67780, 135560, 2179127, 4358254, 8716508, 10895635, 17433016, 21791270, 43582540, 87165080]

約数ペア:

[(1, 87165080), (2, 43582540), (4, 21791270), (5, 17433016), (8, 10895635), (10, 8716508), (20, 4358254), (40, 2179127), (643, 135560), (1286, 67780), (2572, 33890), (3215, 27112), (3389, 25720), (5144, 16945), (6430, 13556), (6778, 12860)]