408052160

素因数分解:

$2^6\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1279}}^1$

素因数の和:2293

約数の個数: 56

約数和(自身を含む): 973409280

約数和(自身を除く): 565357120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 997, 1279, 1994, 2558, 3988, 4985, 5116, 6395, 7976, 9970, 10232, 12790, 15952, 19940, 20464, 25580, 31904, 39880, 40928, 51160, 63808, 79760, 81856, 102320, 159520, 204640, 319040, 409280, 1275163, 2550326, 5100652, 6375815, 10201304, 12751630, 20402608, 25503260, 40805216, 51006520, 81610432, 102013040, 204026080, 408052160]

約数ペア:

[(1, 408052160), (2, 204026080), (4, 102013040), (5, 81610432), (8, 51006520), (10, 40805216), (16, 25503260), (20, 20402608), (32, 12751630), (40, 10201304), (64, 6375815), (80, 5100652), (160, 2550326), (320, 1275163), (997, 409280), (1279, 319040), (1994, 204640), (2558, 159520), (3988, 102320), (4985, 81856), (5116, 79760), (6395, 63808), (7976, 51160), (9970, 40928), (10232, 39880), (12790, 31904), (15952, 25580), (19940, 20464)]