81329212

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{307}}^1\times {\mathrm{643}}^1$

素因数の和:1057

約数の個数: 24

約数和(自身を含む): 144400256

約数和(自身を除く): 63071044

約数列:

[1, 2, 4, 103, 206, 307, 412, 614, 643, 1228, 1286, 2572, 31621, 63242, 66229, 126484, 132458, 197401, 264916, 394802, 789604, 20332303, 40664606, 81329212]

約数ペア:

[(1, 81329212), (2, 40664606), (4, 20332303), (103, 789604), (206, 394802), (307, 264916), (412, 197401), (614, 132458), (643, 126484), (1228, 66229), (1286, 63242), (2572, 31621)]