28284284

素因数分解:

$2^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1571}}^1$

素因数の和:2225

約数の個数: 24

約数和(自身を含む): 56692608

約数和(自身を除く): 28408324

約数列:

[1, 2, 4, 7, 14, 28, 643, 1286, 1571, 2572, 3142, 4501, 6284, 9002, 10997, 18004, 21994, 43988, 1010153, 2020306, 4040612, 7071071, 14142142, 28284284]

約数ペア:

[(1, 28284284), (2, 14142142), (4, 7071071), (7, 4040612), (14, 2020306), (28, 1010153), (643, 43988), (1286, 21994), (1571, 18004), (2572, 10997), (3142, 9002), (4501, 6284)]