81976670

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{79589}}^1$

素因数の和:79699

約数の個数: 16

約数和(自身を含む): 148992480

約数和(自身を除く): 67015810

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 79589, 159178, 397945, 795890, 8197667, 16395334, 40988335, 81976670]

約数ペア:

[(1, 81976670), (2, 40988335), (5, 16395334), (10, 8197667), (103, 795890), (206, 397945), (515, 159178), (1030, 79589)]