31521280

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{1759}}^1$

素因数の和:1789

約数の個数: 80

約数和(自身を含む): 86423040

約数和(自身を除く): 54901760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1759, 1792, 2240, 2560, 3518, 3584, 4480, 7036, 8795, 8960, 12313, 14072, 17590, 17920, 24626, 28144, 35180, 49252, 56288, 61565, 70360, 98504, 112576, 123130, 140720, 197008, 225152, 246260, 281440, 394016, 450304, 492520, 562880, 788032, 900608, 985040, 1125760, 1576064, 1970080, 2251520, 3152128, 3940160, 4503040, 6304256, 7880320, 15760640, 31521280]

約数ペア:

[(1, 31521280), (2, 15760640), (4, 7880320), (5, 6304256), (7, 4503040), (8, 3940160), (10, 3152128), (14, 2251520), (16, 1970080), (20, 1576064), (28, 1125760), (32, 985040), (35, 900608), (40, 788032), (56, 562880), (64, 492520), (70, 450304), (80, 394016), (112, 281440), (128, 246260), (140, 225152), (160, 197008), (224, 140720), (256, 123130), (280, 112576), (320, 98504), (448, 70360), (512, 61565), (560, 56288), (640, 49252), (896, 35180), (1120, 28144), (1280, 24626), (1759, 17920), (1792, 17590), (2240, 14072), (2560, 12313), (3518, 8960), (3584, 8795), (4480, 7036)]