261679980772

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1\times {\mathrm{270287}}^1$

素因数の和:270856

約数の個数: 48

約数和(自身を含む): 531822993408

約数和(自身を除く): 270143012636

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 487, 497, 974, 994, 1948, 1988, 3409, 6818, 13636, 34577, 69154, 138308, 242039, 270287, 484078, 540574, 968156, 1081148, 1892009, 3784018, 7568036, 19190377, 38380754, 76761508, 131629769, 134332639, 263259538, 268665278, 526519076, 537330556, 921408383, 1842816766, 3685633532, 9345713599, 18691427198, 37382854396, 65419995193, 130839990386, 261679980772]

約数ペア:

[(1, 261679980772), (2, 130839990386), (4, 65419995193), (7, 37382854396), (14, 18691427198), (28, 9345713599), (71, 3685633532), (142, 1842816766), (284, 921408383), (487, 537330556), (497, 526519076), (974, 268665278), (994, 263259538), (1948, 134332639), (1988, 131629769), (3409, 76761508), (6818, 38380754), (13636, 19190377), (34577, 7568036), (69154, 3784018), (138308, 1892009), (242039, 1081148), (270287, 968156), (484078, 540574)]