88971520

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 144

約数和(自身を含む): 238412160

約数和(自身を除く): 149440640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 71, 80, 88, 89, 110, 128, 142, 160, 176, 178, 220, 256, 284, 320, 352, 355, 356, 440, 445, 568, 640, 704, 710, 712, 781, 880, 890, 979, 1136, 1280, 1408, 1420, 1424, 1562, 1760, 1780, 1958, 2272, 2816, 2840, 2848, 3124, 3520, 3560, 3905, 3916, 4544, 4895, 5680, 5696, 6248, 6319, 7040, 7120, 7810, 7832, 9088, 9790, 11360, 11392, 12496, 12638, 14080, 14240, 15620, 15664, 18176, 19580, 22720, 22784, 24992, 25276, 28480, 31240, 31328, 31595, 39160, 45440, 49984, 50552, 56960, 62480, 62656, 63190, 69509, 78320, 90880, 99968, 101104, 113920, 124960, 125312, 126380, 139018, 156640, 199936, 202208, 249920, 250624, 252760, 278036, 313280, 347545, 404416, 499840, 505520, 556072, 626560, 695090, 808832, 999680, 1011040, 1112144, 1253120, 1390180, 1617664, 2022080, 2224288, 2780360, 4044160, 4448576, 5560720, 8088320, 8897152, 11121440, 17794304, 22242880, 44485760, 88971520]

約数ペア:

[(1, 88971520), (2, 44485760), (4, 22242880), (5, 17794304), (8, 11121440), (10, 8897152), (11, 8088320), (16, 5560720), (20, 4448576), (22, 4044160), (32, 2780360), (40, 2224288), (44, 2022080), (55, 1617664), (64, 1390180), (71, 1253120), (80, 1112144), (88, 1011040), (89, 999680), (110, 808832), (128, 695090), (142, 626560), (160, 556072), (176, 505520), (178, 499840), (220, 404416), (256, 347545), (284, 313280), (320, 278036), (352, 252760), (355, 250624), (356, 249920), (440, 202208), (445, 199936), (568, 156640), (640, 139018), (704, 126380), (710, 125312), (712, 124960), (781, 113920), (880, 101104), (890, 99968), (979, 90880), (1136, 78320), (1280, 69509), (1408, 63190), (1420, 62656), (1424, 62480), (1562, 56960), (1760, 50552), (1780, 49984), (1958, 45440), (2272, 39160), (2816, 31595), (2840, 31328), (2848, 31240), (3124, 28480), (3520, 25276), (3560, 24992), (3905, 22784), (3916, 22720), (4544, 19580), (4895, 18176), (5680, 15664), (5696, 15620), (6248, 14240), (6319, 14080), (7040, 12638), (7120, 12496), (7810, 11392), (7832, 11360), (9088, 9790)]