164565520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{41981}}^1$

素因数の和:42008

約数の個数: 60

約数和(自身を含む): 445093164

約数和(自身を除く): 280527644

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 41981, 83962, 167924, 209905, 293867, 335848, 419810, 587734, 671696, 839620, 1175468, 1469335, 1679240, 2057069, 2350936, 2938670, 3358480, 4114138, 4701872, 5877340, 8228276, 10285345, 11754680, 16456552, 20570690, 23509360, 32913104, 41141380, 82282760, 164565520]

約数ペア:

[(1, 164565520), (2, 82282760), (4, 41141380), (5, 32913104), (7, 23509360), (8, 20570690), (10, 16456552), (14, 11754680), (16, 10285345), (20, 8228276), (28, 5877340), (35, 4701872), (40, 4114138), (49, 3358480), (56, 2938670), (70, 2350936), (80, 2057069), (98, 1679240), (112, 1469335), (140, 1175468), (196, 839620), (245, 671696), (280, 587734), (392, 419810), (490, 335848), (560, 293867), (784, 209905), (980, 167924), (1960, 83962), (3920, 41981)]