257978824

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{199}}^1\times {\mathrm{1237}}^1$

素因数の和:1573

約数の個数: 32

約数和(自身を含む): 490248000

約数和(自身を除く): 232269176

約数列:

[1, 2, 4, 8, 131, 199, 262, 398, 524, 796, 1048, 1237, 1592, 2474, 4948, 9896, 26069, 52138, 104276, 162047, 208552, 246163, 324094, 492326, 648188, 984652, 1296376, 1969304, 32247353, 64494706, 128989412, 257978824]

約数ペア:

[(1, 257978824), (2, 128989412), (4, 64494706), (8, 32247353), (131, 1969304), (199, 1296376), (262, 984652), (398, 648188), (524, 492326), (796, 324094), (1048, 246163), (1237, 208552), (1592, 162047), (2474, 104276), (4948, 52138), (9896, 26069)]