81274784

素因数分解:

$2^5\times {\mathrm{199}}^1\times {\mathrm{12763}}^1$

素因数の和:12972

約数の個数: 24

約数和(自身を含む): 160826400

約数和(自身を除く): 79551616

約数列:

[1, 2, 4, 8, 16, 32, 199, 398, 796, 1592, 3184, 6368, 12763, 25526, 51052, 102104, 204208, 408416, 2539837, 5079674, 10159348, 20318696, 40637392, 81274784]

約数ペア:

[(1, 81274784), (2, 40637392), (4, 20318696), (8, 10159348), (16, 5079674), (32, 2539837), (199, 408416), (398, 204208), (796, 102104), (1592, 51052), (3184, 25526), (6368, 12763)]