208515910

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{191299}}^1$

素因数の和:191415

約数の個数: 16

約数和(自身を含む): 378774000

約数和(自身を除く): 170258090

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 191299, 382598, 956495, 1912990, 20851591, 41703182, 104257955, 208515910]

約数ペア:

[(1, 208515910), (2, 104257955), (5, 41703182), (10, 20851591), (109, 1912990), (218, 956495), (545, 382598), (1090, 191299)]