31271680

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2221}}^1$

素因数の和:2253

約数の個数: 72

約数和(自身を含む): 81751824

約数和(自身を除く): 50480144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2221, 2816, 3520, 4442, 7040, 8884, 11105, 14080, 17768, 22210, 24431, 35536, 44420, 48862, 71072, 88840, 97724, 122155, 142144, 177680, 195448, 244310, 284288, 355360, 390896, 488620, 568576, 710720, 781792, 977240, 1421440, 1563584, 1954480, 2842880, 3127168, 3908960, 6254336, 7817920, 15635840, 31271680]

約数ペア:

[(1, 31271680), (2, 15635840), (4, 7817920), (5, 6254336), (8, 3908960), (10, 3127168), (11, 2842880), (16, 1954480), (20, 1563584), (22, 1421440), (32, 977240), (40, 781792), (44, 710720), (55, 568576), (64, 488620), (80, 390896), (88, 355360), (110, 284288), (128, 244310), (160, 195448), (176, 177680), (220, 142144), (256, 122155), (320, 97724), (352, 88840), (440, 71072), (640, 48862), (704, 44420), (880, 35536), (1280, 24431), (1408, 22210), (1760, 17768), (2221, 14080), (2816, 11105), (3520, 8884), (4442, 7040)]