28520375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17551}}^1$

素因数の和:17579

約数の個数: 16

約数和(自身を含む): 38333568

約数和(自身を除く): 9813193

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 17551, 87755, 228163, 438775, 1140815, 2193875, 5704075, 28520375]

約数ペア:

[(1, 28520375), (5, 5704075), (13, 2193875), (25, 1140815), (65, 438775), (125, 228163), (325, 87755), (1625, 17551)]