287498290

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{128923}}^1$

素因数の和:129153

約数の個数: 16

約数和(自身を含む): 519821568

約数和(自身を除く): 232323278

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2230, 128923, 257846, 644615, 1289230, 28749829, 57499658, 143749145, 287498290]

約数ペア:

[(1, 287498290), (2, 143749145), (5, 57499658), (10, 28749829), (223, 1289230), (446, 644615), (1115, 257846), (2230, 128923)]