10485980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 22952160

約数和(自身を除く): 12466180

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 137, 172, 178, 215, 274, 356, 430, 445, 548, 685, 860, 890, 1370, 1780, 2740, 3827, 5891, 7654, 11782, 12193, 15308, 19135, 23564, 24386, 29455, 38270, 48772, 58910, 60965, 76540, 117820, 121930, 243860, 524299, 1048598, 2097196, 2621495, 5242990, 10485980]

約数ペア:

[(1, 10485980), (2, 5242990), (4, 2621495), (5, 2097196), (10, 1048598), (20, 524299), (43, 243860), (86, 121930), (89, 117820), (137, 76540), (172, 60965), (178, 58910), (215, 48772), (274, 38270), (356, 29455), (430, 24386), (445, 23564), (548, 19135), (685, 15308), (860, 12193), (890, 11782), (1370, 7654), (1780, 5891), (2740, 3827)]