81586760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107351}}^1$

素因数の和:107381

約数の個数: 32

約数和(自身を含む): 193233600

約数和(自身を除く): 111646840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 107351, 214702, 429404, 536755, 858808, 1073510, 2039669, 2147020, 4079338, 4294040, 8158676, 10198345, 16317352, 20396690, 40793380, 81586760]

約数ペア:

[(1, 81586760), (2, 40793380), (4, 20396690), (5, 16317352), (8, 10198345), (10, 8158676), (19, 4294040), (20, 4079338), (38, 2147020), (40, 2039669), (76, 1073510), (95, 858808), (152, 536755), (190, 429404), (380, 214702), (760, 107351)]