20340188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 20786212

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 101, 199, 202, 253, 398, 404, 506, 796, 1012, 1111, 2189, 2222, 2323, 4378, 4444, 4577, 4646, 8756, 9154, 9292, 18308, 20099, 25553, 40198, 50347, 51106, 80396, 100694, 102212, 201388, 221089, 442178, 462277, 884356, 924554, 1849108, 5085047, 10170094, 20340188]

約数ペア:

[(1, 20340188), (2, 10170094), (4, 5085047), (11, 1849108), (22, 924554), (23, 884356), (44, 462277), (46, 442178), (92, 221089), (101, 201388), (199, 102212), (202, 100694), (253, 80396), (398, 51106), (404, 50347), (506, 40198), (796, 25553), (1012, 20099), (1111, 18308), (2189, 9292), (2222, 9154), (2323, 8756), (4378, 4646), (4444, 4577)]