199989735

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{2879}}^1$

素因数の和:3319

約数の個数: 32

約数和(自身を含む): 350023680

約数和(自身を除く): 150033945

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 421, 1263, 2105, 2879, 4631, 6315, 8637, 13893, 14395, 23155, 31669, 43185, 69465, 95007, 158345, 475035, 1212059, 3636177, 6060295, 13332649, 18180885, 39997947, 66663245, 199989735]

約数ペア:

[(1, 199989735), (3, 66663245), (5, 39997947), (11, 18180885), (15, 13332649), (33, 6060295), (55, 3636177), (165, 1212059), (421, 475035), (1263, 158345), (2105, 95007), (2879, 69465), (4631, 43185), (6315, 31669), (8637, 23155), (13893, 14395)]