13840820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{907}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 33559680

約数和(自身を除く): 19718860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 907, 1090, 1526, 1814, 2180, 3052, 3628, 3815, 4535, 6349, 7630, 9070, 12698, 15260, 18140, 25396, 31745, 63490, 98863, 126980, 197726, 395452, 494315, 692041, 988630, 1384082, 1977260, 2768164, 3460205, 6920410, 13840820]

約数ペア:

[(1, 13840820), (2, 6920410), (4, 3460205), (5, 2768164), (7, 1977260), (10, 1384082), (14, 988630), (20, 692041), (28, 494315), (35, 395452), (70, 197726), (109, 126980), (140, 98863), (218, 63490), (436, 31745), (545, 25396), (763, 18140), (907, 15260), (1090, 12698), (1526, 9070), (1814, 7630), (2180, 6349), (3052, 4535), (3628, 3815)]