251656040

素因数分解:

$2^3\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{4919}}^1$

素因数の和:6209

約数の個数: 32

約数和(自身を含む): 566784000

約数和(自身を除く): 315127960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1279, 2558, 4919, 5116, 6395, 9838, 10232, 12790, 19676, 24595, 25580, 39352, 49190, 51160, 98380, 196760, 6291401, 12582802, 25165604, 31457005, 50331208, 62914010, 125828020, 251656040]

約数ペア:

[(1, 251656040), (2, 125828020), (4, 62914010), (5, 50331208), (8, 31457005), (10, 25165604), (20, 12582802), (40, 6291401), (1279, 196760), (2558, 98380), (4919, 51160), (5116, 49190), (6395, 39352), (9838, 25580), (10232, 24595), (12790, 19676)]