28752515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 10645885

約数列:

[1, 5, 11, 37, 55, 71, 185, 199, 355, 407, 781, 995, 2035, 2189, 2627, 3905, 7363, 10945, 13135, 14129, 28897, 36815, 70645, 80993, 144485, 155419, 404965, 522773, 777095, 2613865, 5750503, 28752515]

約数ペア:

[(1, 28752515), (5, 5750503), (11, 2613865), (37, 777095), (55, 522773), (71, 404965), (185, 155419), (199, 144485), (355, 80993), (407, 70645), (781, 36815), (995, 28897), (2035, 14129), (2189, 13135), (2627, 10945), (3905, 7363)]