129090160

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{8191}}^1$

素因数の和:8401

約数の個数: 40

約数和(自身を含む): 301694976

約数和(自身を除く): 172604816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 8191, 15760, 16382, 32764, 40955, 65528, 81910, 131056, 163820, 327640, 655280, 1613627, 3227254, 6454508, 8068135, 12909016, 16136270, 25818032, 32272540, 64545080, 129090160]

約数ペア:

[(1, 129090160), (2, 64545080), (4, 32272540), (5, 25818032), (8, 16136270), (10, 12909016), (16, 8068135), (20, 6454508), (40, 3227254), (80, 1613627), (197, 655280), (394, 327640), (788, 163820), (985, 131056), (1576, 81910), (1970, 65528), (3152, 40955), (3940, 32764), (7880, 16382), (8191, 15760)]