81137756

素因数分解:

$2^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{8209}}^1$

素因数の和:8573

約数の個数: 24

約数和(自身を含む): 162755040

約数和(自身を除く): 81617284

約数列:

[1, 2, 4, 7, 14, 28, 353, 706, 1412, 2471, 4942, 8209, 9884, 16418, 32836, 57463, 114926, 229852, 2897777, 5795554, 11591108, 20284439, 40568878, 81137756]

約数ペア:

[(1, 81137756), (2, 40568878), (4, 20284439), (7, 11591108), (14, 5795554), (28, 2897777), (353, 229852), (706, 114926), (1412, 57463), (2471, 32836), (4942, 16418), (8209, 9884)]