28381270

素因数分解:

$2^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{4003}}^1$

素因数の和:4719

約数の個数: 16

約数和(自身を含む): 51171120

約数和(自身を除く): 22789850

約数列:

[1, 2, 5, 10, 709, 1418, 3545, 4003, 7090, 8006, 20015, 40030, 2838127, 5676254, 14190635, 28381270]

約数ペア:

[(1, 28381270), (2, 14190635), (5, 5676254), (10, 2838127), (709, 40030), (1418, 20015), (3545, 8006), (4003, 7090)]