19957168

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 48996864

約数和(自身を除く): 29039696

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 97, 112, 154, 167, 176, 194, 308, 334, 388, 616, 668, 679, 776, 1067, 1169, 1232, 1336, 1358, 1552, 1837, 2134, 2338, 2672, 2716, 3674, 4268, 4676, 5432, 7348, 7469, 8536, 9352, 10864, 12859, 14696, 14938, 16199, 17072, 18704, 25718, 29392, 29876, 32398, 51436, 59752, 64796, 102872, 113393, 119504, 129592, 178189, 205744, 226786, 259184, 356378, 453572, 712756, 907144, 1247323, 1425512, 1814288, 2494646, 2851024, 4989292, 9978584, 19957168]

約数ペア:

[(1, 19957168), (2, 9978584), (4, 4989292), (7, 2851024), (8, 2494646), (11, 1814288), (14, 1425512), (16, 1247323), (22, 907144), (28, 712756), (44, 453572), (56, 356378), (77, 259184), (88, 226786), (97, 205744), (112, 178189), (154, 129592), (167, 119504), (176, 113393), (194, 102872), (308, 64796), (334, 59752), (388, 51436), (616, 32398), (668, 29876), (679, 29392), (776, 25718), (1067, 18704), (1169, 17072), (1232, 16199), (1336, 14938), (1358, 14696), (1552, 12859), (1837, 10864), (2134, 9352), (2338, 8536), (2672, 7469), (2716, 7348), (3674, 5432), (4268, 4676)]