28381575

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{13049}}^1$

素因数の和:13091

約数の個数: 24

約数和(自身を含む): 48546000

約数和(自身を除く): 20164425

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 13049, 39147, 65245, 195735, 326225, 378421, 978675, 1135263, 1892105, 5676315, 9460525, 28381575]

約数ペア:

[(1, 28381575), (3, 9460525), (5, 5676315), (15, 1892105), (25, 1135263), (29, 978675), (75, 378421), (87, 326225), (145, 195735), (435, 65245), (725, 39147), (2175, 13049)]