19794080

素因数分解:

$2^5\times 5^1\times {\mathrm{193}}^1\times {\mathrm{641}}^1$

素因数の和:849

約数の個数: 48

約数和(自身を含む): 47079144

約数和(自身を除く): 27285064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 193, 386, 641, 772, 965, 1282, 1544, 1930, 2564, 3088, 3205, 3860, 5128, 6176, 6410, 7720, 10256, 12820, 15440, 20512, 25640, 30880, 51280, 102560, 123713, 247426, 494852, 618565, 989704, 1237130, 1979408, 2474260, 3958816, 4948520, 9897040, 19794080]

約数ペア:

[(1, 19794080), (2, 9897040), (4, 4948520), (5, 3958816), (8, 2474260), (10, 1979408), (16, 1237130), (20, 989704), (32, 618565), (40, 494852), (80, 247426), (160, 123713), (193, 102560), (386, 51280), (641, 30880), (772, 25640), (965, 20512), (1282, 15440), (1544, 12820), (1930, 10256), (2564, 7720), (3088, 6410), (3205, 6176), (3860, 5128)]