28988728

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 55440000

約数和(自身を除く): 26451272

約数列:

[1, 2, 4, 8, 131, 139, 199, 262, 278, 398, 524, 556, 796, 1048, 1112, 1592, 18209, 26069, 27661, 36418, 52138, 55322, 72836, 104276, 110644, 145672, 208552, 221288, 3623591, 7247182, 14494364, 28988728]

約数ペア:

[(1, 28988728), (2, 14494364), (4, 7247182), (8, 3623591), (131, 221288), (139, 208552), (199, 145672), (262, 110644), (278, 104276), (398, 72836), (524, 55322), (556, 52138), (796, 36418), (1048, 27661), (1112, 26069), (1592, 18209)]