55814840

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2111}}^1$

素因数の和:2783

約数の個数: 32

約数和(自身を含む): 125832960

約数和(自身を除く): 70018120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2111, 2644, 3305, 4222, 5288, 6610, 8444, 10555, 13220, 16888, 21110, 26440, 42220, 84440, 1395371, 2790742, 5581484, 6976855, 11162968, 13953710, 27907420, 55814840]

約数ペア:

[(1, 55814840), (2, 27907420), (4, 13953710), (5, 11162968), (8, 6976855), (10, 5581484), (20, 2790742), (40, 1395371), (661, 84440), (1322, 42220), (2111, 26440), (2644, 21110), (3305, 16888), (4222, 13220), (5288, 10555), (6610, 8444)]