28216910

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{6899}}^1$

素因数の和:7315

約数の個数: 16

約数和(自身を含む): 50922000

約数和(自身を除く): 22705090

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 6899, 13798, 34495, 68990, 2821691, 5643382, 14108455, 28216910]

約数ペア:

[(1, 28216910), (2, 14108455), (5, 5643382), (10, 2821691), (409, 68990), (818, 34495), (2045, 13798), (4090, 6899)]