256213412

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{703883}}^1$

素因数の和:703907

約数の個数: 24

約数和(自身を含む): 551845056

約数和(自身を除く): 295631644

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 703883, 1407766, 2815532, 4927181, 9150479, 9854362, 18300958, 19708724, 36601916, 64053353, 128106706, 256213412]

約数ペア:

[(1, 256213412), (2, 128106706), (4, 64053353), (7, 36601916), (13, 19708724), (14, 18300958), (26, 9854362), (28, 9150479), (52, 4927181), (91, 2815532), (182, 1407766), (364, 703883)]