81006910

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{91019}}^1$

素因数の和:91115

約数の個数: 16

約数和(自身を含む): 147452400

約数和(自身を除く): 66445490

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 91019, 182038, 455095, 910190, 8100691, 16201382, 40503455, 81006910]

約数ペア:

[(1, 81006910), (2, 40503455), (5, 16201382), (10, 8100691), (89, 910190), (178, 455095), (445, 182038), (890, 91019)]