989707280

素因数分解:

$2^4\times 5^1\times {\mathrm{709}}^1\times {\mathrm{17449}}^1$

素因数の和:18171

約数の個数: 40

約数和(自身を含む): 2304447000

約数和(自身を除く): 1314739720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 709, 1418, 2836, 3545, 5672, 7090, 11344, 14180, 17449, 28360, 34898, 56720, 69796, 87245, 139592, 174490, 279184, 348980, 697960, 1395920, 12371341, 24742682, 49485364, 61856705, 98970728, 123713410, 197941456, 247426820, 494853640, 989707280]

約数ペア:

[(1, 989707280), (2, 494853640), (4, 247426820), (5, 197941456), (8, 123713410), (10, 98970728), (16, 61856705), (20, 49485364), (40, 24742682), (80, 12371341), (709, 1395920), (1418, 697960), (2836, 348980), (3545, 279184), (5672, 174490), (7090, 139592), (11344, 87245), (14180, 69796), (17449, 56720), (28360, 34898)]