171680.0000000

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{521}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 12120840

約数和(自身を除く): 6764960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 521, 1028, 1042, 1285, 2056, 2084, 2570, 2605, 4168, 5140, 5210, 10280, 10420, 20840, 133897, 267794, 535588, 669485, 1071176, 1338970, 2677940, 5355880]

約数ペア:

[(1, 5355880), (2, 2677940), (4, 1338970), (5, 1071176), (8, 669485), (10, 535588), (20, 267794), (40, 133897), (257, 20840), (514, 10420), (521, 10280), (1028, 5210), (1042, 5140), (1285, 4168), (2056, 2605), (2084, 2570)]