81738255

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 133056000

約数和(自身を除く): 51317745

約数列:

[1, 3, 5, 15, 139, 197, 199, 417, 591, 597, 695, 985, 995, 2085, 2955, 2985, 27383, 27661, 39203, 82149, 82983, 117609, 136915, 138305, 196015, 410745, 414915, 588045, 5449217, 16347651, 27246085, 81738255]

約数ペア:

[(1, 81738255), (3, 27246085), (5, 16347651), (15, 5449217), (139, 588045), (197, 414915), (199, 410745), (417, 196015), (591, 138305), (597, 136915), (695, 117609), (985, 82983), (995, 82149), (2085, 39203), (2955, 27661), (2985, 27383)]