28720565

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4759}}^1$

素因数の和:4852

約数の個数: 16

約数和(自身を含む): 37013760

約数和(自身を除く): 8293195

約数列:

[1, 5, 17, 71, 85, 355, 1207, 4759, 6035, 23795, 80903, 337889, 404515, 1689445, 5744113, 28720565]

約数ペア:

[(1, 28720565), (5, 5744113), (17, 1689445), (71, 404515), (85, 337889), (355, 80903), (1207, 23795), (4759, 6035)]