80998010

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{91009}}^1$

素因数の和:91105

約数の個数: 16

約数和(自身を含む): 147436200

約数和(自身を除く): 66438190

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 91009, 182018, 455045, 910090, 8099801, 16199602, 40499005, 80998010]

約数ペア:

[(1, 80998010), (2, 40499005), (5, 16199602), (10, 8099801), (89, 910090), (178, 455045), (445, 182018), (890, 91009)]