28289105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{25601}}^1$

素因数の和:25636

約数の個数: 16

約数和(自身を含む): 38710224

約数和(自身を除く): 10421119

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 25601, 128005, 332813, 435217, 1664065, 2176085, 5657821, 28289105]

約数ペア:

[(1, 28289105), (5, 5657821), (13, 2176085), (17, 1664065), (65, 435217), (85, 332813), (221, 128005), (1105, 25601)]