81973760

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 160

約数和(自身を含む): 222735744

約数和(自身を除く): 140761984

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 71, 80, 82, 88, 110, 128, 142, 160, 164, 176, 205, 220, 256, 284, 320, 328, 352, 355, 410, 440, 451, 512, 568, 640, 656, 704, 710, 781, 820, 880, 902, 1136, 1280, 1312, 1408, 1420, 1562, 1640, 1760, 1804, 2255, 2272, 2560, 2624, 2816, 2840, 2911, 3124, 3280, 3520, 3608, 3905, 4510, 4544, 5248, 5632, 5680, 5822, 6248, 6560, 7040, 7216, 7810, 9020, 9088, 10496, 11360, 11644, 12496, 13120, 14080, 14432, 14555, 15620, 18040, 18176, 20992, 22720, 23288, 24992, 26240, 28160, 28864, 29110, 31240, 32021, 36080, 36352, 45440, 46576, 49984, 52480, 57728, 58220, 62480, 64042, 72160, 90880, 93152, 99968, 104960, 115456, 116440, 124960, 128084, 144320, 160105, 181760, 186304, 199936, 230912, 232880, 249920, 256168, 288640, 320210, 372608, 399872, 465760, 499840, 512336, 577280, 640420, 745216, 931520, 999680, 1024672, 1154560, 1280840, 1490432, 1863040, 1999360, 2049344, 2561680, 3726080, 4098688, 5123360, 7452160, 8197376, 10246720, 16394752, 20493440, 40986880, 81973760]

約数ペア:

[(1, 81973760), (2, 40986880), (4, 20493440), (5, 16394752), (8, 10246720), (10, 8197376), (11, 7452160), (16, 5123360), (20, 4098688), (22, 3726080), (32, 2561680), (40, 2049344), (41, 1999360), (44, 1863040), (55, 1490432), (64, 1280840), (71, 1154560), (80, 1024672), (82, 999680), (88, 931520), (110, 745216), (128, 640420), (142, 577280), (160, 512336), (164, 499840), (176, 465760), (205, 399872), (220, 372608), (256, 320210), (284, 288640), (320, 256168), (328, 249920), (352, 232880), (355, 230912), (410, 199936), (440, 186304), (451, 181760), (512, 160105), (568, 144320), (640, 128084), (656, 124960), (704, 116440), (710, 115456), (781, 104960), (820, 99968), (880, 93152), (902, 90880), (1136, 72160), (1280, 64042), (1312, 62480), (1408, 58220), (1420, 57728), (1562, 52480), (1640, 49984), (1760, 46576), (1804, 45440), (2255, 36352), (2272, 36080), (2560, 32021), (2624, 31240), (2816, 29110), (2840, 28864), (2911, 28160), (3124, 26240), (3280, 24992), (3520, 23288), (3608, 22720), (3905, 20992), (4510, 18176), (4544, 18040), (5248, 15620), (5632, 14555), (5680, 14432), (5822, 14080), (6248, 13120), (6560, 12496), (7040, 11644), (7216, 11360), (7810, 10496), (9020, 9088)]