221890816

素因数分解:

$2^8\times 7^4\times {\mathrm{19}}^2$

素因数の和:82

約数の個数: 135

約数和(自身を含む): 545329491

約数和(自身を除く): 323438675

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 49, 56, 64, 76, 98, 112, 128, 133, 152, 196, 224, 256, 266, 304, 343, 361, 392, 448, 532, 608, 686, 722, 784, 896, 931, 1064, 1216, 1372, 1444, 1568, 1792, 1862, 2128, 2401, 2432, 2527, 2744, 2888, 3136, 3724, 4256, 4802, 4864, 5054, 5488, 5776, 6272, 6517, 7448, 8512, 9604, 10108, 10976, 11552, 12544, 13034, 14896, 17024, 17689, 19208, 20216, 21952, 23104, 26068, 29792, 34048, 35378, 38416, 40432, 43904, 45619, 46208, 52136, 59584, 70756, 76832, 80864, 87808, 91238, 92416, 104272, 119168, 123823, 141512, 153664, 161728, 182476, 208544, 238336, 247646, 283024, 307328, 323456, 364952, 417088, 495292, 566048, 614656, 646912, 729904, 834176, 866761, 990584, 1132096, 1459808, 1668352, 1733522, 1981168, 2264192, 2919616, 3467044, 3962336, 4528384, 5839232, 6934088, 7924672, 11678464, 13868176, 15849344, 27736352, 31698688, 55472704, 110945408, 221890816]

約数ペア:

[(1, 221890816), (2, 110945408), (4, 55472704), (7, 31698688), (8, 27736352), (14, 15849344), (16, 13868176), (19, 11678464), (28, 7924672), (32, 6934088), (38, 5839232), (49, 4528384), (56, 3962336), (64, 3467044), (76, 2919616), (98, 2264192), (112, 1981168), (128, 1733522), (133, 1668352), (152, 1459808), (196, 1132096), (224, 990584), (256, 866761), (266, 834176), (304, 729904), (343, 646912), (361, 614656), (392, 566048), (448, 495292), (532, 417088), (608, 364952), (686, 323456), (722, 307328), (784, 283024), (896, 247646), (931, 238336), (1064, 208544), (1216, 182476), (1372, 161728), (1444, 153664), (1568, 141512), (1792, 123823), (1862, 119168), (2128, 104272), (2401, 92416), (2432, 91238), (2527, 87808), (2744, 80864), (2888, 76832), (3136, 70756), (3724, 59584), (4256, 52136), (4802, 46208), (4864, 45619), (5054, 43904), (5488, 40432), (5776, 38416), (6272, 35378), (6517, 34048), (7448, 29792), (8512, 26068), (9604, 23104), (10108, 21952), (10976, 20216), (11552, 19208), (12544, 17689), (13034, 17024)]