256251081

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3947}}^1$

素因数の和:4053

約数の個数: 32

約数和(自身を含む): 386588160

約数和(自身を除く): 130337079

約数列:

[1, 3, 17, 19, 51, 57, 67, 201, 323, 969, 1139, 1273, 3417, 3819, 3947, 11841, 21641, 64923, 67099, 74993, 201297, 224979, 264449, 793347, 1274881, 3824643, 4495633, 5024531, 13486899, 15073593, 85417027, 256251081]

約数ペア:

[(1, 256251081), (3, 85417027), (17, 15073593), (19, 13486899), (51, 5024531), (57, 4495633), (67, 3824643), (201, 1274881), (323, 793347), (969, 264449), (1139, 224979), (1273, 201297), (3417, 74993), (3819, 67099), (3947, 64923), (11841, 21641)]