199972870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{2963}}^1$

素因数の和:3384

約数の個数: 32

約数和(自身を含む): 382213728

約数和(自身を除く): 182240858

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 397, 794, 1985, 2963, 3970, 5926, 6749, 13498, 14815, 29630, 33745, 50371, 67490, 100742, 251855, 503710, 1176311, 2352622, 5881555, 11763110, 19997287, 39994574, 99986435, 199972870]

約数ペア:

[(1, 199972870), (2, 99986435), (5, 39994574), (10, 19997287), (17, 11763110), (34, 5881555), (85, 2352622), (170, 1176311), (397, 503710), (794, 251855), (1985, 100742), (2963, 67490), (3970, 50371), (5926, 33745), (6749, 29630), (13498, 14815)]