81557816

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{443249}}^1$

素因数の和:443278

約数の個数: 16

約数和(自身を含む): 159570000

約数和(自身を除く): 78012184

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 443249, 886498, 1772996, 3545992, 10194727, 20389454, 40778908, 81557816]

約数ペア:

[(1, 81557816), (2, 40778908), (4, 20389454), (8, 10194727), (23, 3545992), (46, 1772996), (92, 886498), (184, 443249)]