20866048

素因数分解:

$2^{10}\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 88

約数和(自身を含む): 49521024

約数和(自身を除く): 28654976

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 71, 82, 112, 128, 142, 164, 224, 256, 284, 287, 328, 448, 497, 512, 568, 574, 656, 896, 994, 1024, 1136, 1148, 1312, 1792, 1988, 2272, 2296, 2624, 2911, 3584, 3976, 4544, 4592, 5248, 5822, 7168, 7952, 9088, 9184, 10496, 11644, 15904, 18176, 18368, 20377, 20992, 23288, 31808, 36352, 36736, 40754, 41984, 46576, 63616, 72704, 73472, 81508, 93152, 127232, 146944, 163016, 186304, 254464, 293888, 326032, 372608, 508928, 652064, 745216, 1304128, 1490432, 2608256, 2980864, 5216512, 10433024, 20866048]

約数ペア:

[(1, 20866048), (2, 10433024), (4, 5216512), (7, 2980864), (8, 2608256), (14, 1490432), (16, 1304128), (28, 745216), (32, 652064), (41, 508928), (56, 372608), (64, 326032), (71, 293888), (82, 254464), (112, 186304), (128, 163016), (142, 146944), (164, 127232), (224, 93152), (256, 81508), (284, 73472), (287, 72704), (328, 63616), (448, 46576), (497, 41984), (512, 40754), (568, 36736), (574, 36352), (656, 31808), (896, 23288), (994, 20992), (1024, 20377), (1136, 18368), (1148, 18176), (1312, 15904), (1792, 11644), (1988, 10496), (2272, 9184), (2296, 9088), (2624, 7952), (2911, 7168), (3584, 5822), (3976, 5248), (4544, 4592)]