27788440

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1051}}^1$

素因数の和:1723

約数の個数: 32

約数和(自身を含む): 62678160

約数和(自身を除く): 34889720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1051, 1322, 2102, 2644, 3305, 4204, 5255, 5288, 6610, 8408, 10510, 13220, 21020, 26440, 42040, 694711, 1389422, 2778844, 3473555, 5557688, 6947110, 13894220, 27788440]

約数ペア:

[(1, 27788440), (2, 13894220), (4, 6947110), (5, 5557688), (8, 3473555), (10, 2778844), (20, 1389422), (40, 694711), (661, 42040), (1051, 26440), (1322, 21020), (2102, 13220), (2644, 10510), (3305, 8408), (4204, 6610), (5255, 5288)]