28791125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{20939}}^1$

素因数の和:20965

約数の個数: 16

約数和(自身を含む): 39199680

約数和(自身を除く): 10408555

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 20939, 104695, 230329, 523475, 1151645, 2617375, 5758225, 28791125]

約数ペア:

[(1, 28791125), (5, 5758225), (11, 2617375), (25, 1151645), (55, 523475), (125, 230329), (275, 104695), (1375, 20939)]