66880280

素因数分解:

$2^3\times 5^1\times {\mathrm{857}}^1\times {\mathrm{1951}}^1$

素因数の和:2819

約数の個数: 32

約数和(自身を含む): 150733440

約数和(自身を除く): 83853160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 857, 1714, 1951, 3428, 3902, 4285, 6856, 7804, 8570, 9755, 15608, 17140, 19510, 34280, 39020, 78040, 1672007, 3344014, 6688028, 8360035, 13376056, 16720070, 33440140, 66880280]

約数ペア:

[(1, 66880280), (2, 33440140), (4, 16720070), (5, 13376056), (8, 8360035), (10, 6688028), (20, 3344014), (40, 1672007), (857, 78040), (1714, 39020), (1951, 34280), (3428, 19510), (3902, 17140), (4285, 15608), (6856, 9755), (7804, 8570)]