28489010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{258991}}^1$

素因数の和:259009

約数の個数: 16

約数和(自身を含む): 55942272

約数和(自身を除く): 27453262

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 258991, 517982, 1294955, 2589910, 2848901, 5697802, 14244505, 28489010]

約数ペア:

[(1, 28489010), (2, 14244505), (5, 5697802), (10, 2848901), (11, 2589910), (22, 1294955), (55, 517982), (110, 258991)]