28755

素因数分解:

$3^4\times 5^1\times {\mathrm{71}}^1$

素因数の和:88

約数の個数: 20

約数和(自身を含む): 52272

約数和(自身を除く): 23517

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 135, 213, 355, 405, 639, 1065, 1917, 3195, 5751, 9585, 28755]

約数ペア:

[(1, 28755), (3, 9585), (5, 5751), (9, 3195), (15, 1917), (27, 1065), (45, 639), (71, 405), (81, 355), (135, 213)]