81328225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{683}}^1$

素因数の和:1137

約数の個数: 24

約数和(自身を含む): 110430432

約数和(自身を除く): 29102207

約数列:

[1, 5, 11, 25, 55, 275, 433, 683, 2165, 3415, 4763, 7513, 10825, 17075, 23815, 37565, 119075, 187825, 295739, 1478695, 3253129, 7393475, 16265645, 81328225]

約数ペア:

[(1, 81328225), (5, 16265645), (11, 7393475), (25, 3253129), (55, 1478695), (275, 295739), (433, 187825), (683, 119075), (2165, 37565), (3415, 23815), (4763, 17075), (7513, 10825)]