28620976

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 56916000

約数和(自身を除く): 28295024

約数列:

[1, 2, 4, 8, 16, 89, 101, 178, 199, 202, 356, 398, 404, 712, 796, 808, 1424, 1592, 1616, 3184, 8989, 17711, 17978, 20099, 35422, 35956, 40198, 70844, 71912, 80396, 141688, 143824, 160792, 283376, 321584, 1788811, 3577622, 7155244, 14310488, 28620976]

約数ペア:

[(1, 28620976), (2, 14310488), (4, 7155244), (8, 3577622), (16, 1788811), (89, 321584), (101, 283376), (178, 160792), (199, 143824), (202, 141688), (356, 80396), (398, 71912), (404, 70844), (712, 40198), (796, 35956), (808, 35422), (1424, 20099), (1592, 17978), (1616, 17711), (3184, 8989)]