28001270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{254557}}^1$

素因数の和:254575

約数の個数: 16

約数和(自身を含む): 54984528

約数和(自身を除く): 26983258

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 254557, 509114, 1272785, 2545570, 2800127, 5600254, 14000635, 28001270]

約数ペア:

[(1, 28001270), (2, 14000635), (5, 5600254), (10, 2800127), (11, 2545570), (22, 1272785), (55, 509114), (110, 254557)]