28928745

素因数分解:

$3^4\times 5^1\times {\mathrm{71429}}^1$

素因数の和:71446

約数の個数: 20

約数和(自身を含む): 51858180

約数和(自身を除く): 22929435

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71429, 214287, 357145, 642861, 1071435, 1928583, 3214305, 5785749, 9642915, 28928745]

約数ペア:

[(1, 28928745), (3, 9642915), (5, 5785749), (9, 3214305), (15, 1928583), (27, 1071435), (45, 642861), (81, 357145), (135, 214287), (405, 71429)]