80628160

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1279}}^1$

素因数の和:1493

約数の個数: 56

約数和(自身を含む): 193121280

約数和(自身を除く): 112493120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 394, 788, 985, 1279, 1576, 1970, 2558, 3152, 3940, 5116, 6304, 6395, 7880, 10232, 12608, 12790, 15760, 20464, 25580, 31520, 40928, 51160, 63040, 81856, 102320, 204640, 251963, 409280, 503926, 1007852, 1259815, 2015704, 2519630, 4031408, 5039260, 8062816, 10078520, 16125632, 20157040, 40314080, 80628160]

約数ペア:

[(1, 80628160), (2, 40314080), (4, 20157040), (5, 16125632), (8, 10078520), (10, 8062816), (16, 5039260), (20, 4031408), (32, 2519630), (40, 2015704), (64, 1259815), (80, 1007852), (160, 503926), (197, 409280), (320, 251963), (394, 204640), (788, 102320), (985, 81856), (1279, 63040), (1576, 51160), (1970, 40928), (2558, 31520), (3152, 25580), (3940, 20464), (5116, 15760), (6304, 12790), (6395, 12608), (7880, 10232)]