81278642

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{7393}}^1$

素因数の和:7657

約数の個数: 16

約数和(自身を含む): 127768320

約数和(自身を除く): 46489678

約数列:

[1, 2, 23, 46, 239, 478, 5497, 7393, 10994, 14786, 170039, 340078, 1766927, 3533854, 40639321, 81278642]

約数ペア:

[(1, 81278642), (2, 40639321), (23, 3533854), (46, 1766927), (239, 340078), (478, 170039), (5497, 14786), (7393, 10994)]