28463545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 39004416

約数和(自身を除く): 10540871

約数列:

[1, 5, 11, 37, 55, 71, 185, 197, 355, 407, 781, 985, 2035, 2167, 2627, 3905, 7289, 10835, 13135, 13987, 28897, 36445, 69935, 80179, 144485, 153857, 400895, 517519, 769285, 2587595, 5692709, 28463545]

約数ペア:

[(1, 28463545), (5, 5692709), (11, 2587595), (37, 769285), (55, 517519), (71, 400895), (185, 153857), (197, 144485), (355, 80179), (407, 69935), (781, 36445), (985, 28897), (2035, 13987), (2167, 13135), (2627, 10835), (3905, 7289)]