201920488

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{2011}}^1$

素因数の和:2198

約数の個数: 64

約数和(自身を含む): 475153920

約数和(自身を除く): 273233432

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 163, 308, 326, 616, 652, 1141, 1304, 1793, 2011, 2282, 3586, 4022, 4564, 7172, 8044, 9128, 12551, 14077, 14344, 16088, 22121, 25102, 28154, 44242, 50204, 56308, 88484, 100408, 112616, 154847, 176968, 309694, 327793, 619388, 655586, 1238776, 1311172, 2294551, 2622344, 3605723, 4589102, 7211446, 9178204, 14422892, 18356408, 25240061, 28845784, 50480122, 100960244, 201920488]

約数ペア:

[(1, 201920488), (2, 100960244), (4, 50480122), (7, 28845784), (8, 25240061), (11, 18356408), (14, 14422892), (22, 9178204), (28, 7211446), (44, 4589102), (56, 3605723), (77, 2622344), (88, 2294551), (154, 1311172), (163, 1238776), (308, 655586), (326, 619388), (616, 327793), (652, 309694), (1141, 176968), (1304, 154847), (1793, 112616), (2011, 100408), (2282, 88484), (3586, 56308), (4022, 50204), (4564, 44242), (7172, 28154), (8044, 25102), (9128, 22121), (12551, 16088), (14077, 14344)]