85665280

素因数分解:

$2^9\times 5^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:439

約数の個数: 80

約数和(自身を含む): 207955440

約数和(自身を除く): 122290160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 307, 320, 436, 512, 545, 614, 640, 872, 1090, 1228, 1280, 1535, 1744, 2180, 2456, 2560, 3070, 3488, 4360, 4912, 6140, 6976, 8720, 9824, 12280, 13952, 17440, 19648, 24560, 27904, 33463, 34880, 39296, 49120, 55808, 66926, 69760, 78592, 98240, 133852, 139520, 157184, 167315, 196480, 267704, 279040, 334630, 392960, 535408, 669260, 785920, 1070816, 1338520, 2141632, 2677040, 4283264, 5354080, 8566528, 10708160, 17133056, 21416320, 42832640, 85665280]

約数ペア:

[(1, 85665280), (2, 42832640), (4, 21416320), (5, 17133056), (8, 10708160), (10, 8566528), (16, 5354080), (20, 4283264), (32, 2677040), (40, 2141632), (64, 1338520), (80, 1070816), (109, 785920), (128, 669260), (160, 535408), (218, 392960), (256, 334630), (307, 279040), (320, 267704), (436, 196480), (512, 167315), (545, 157184), (614, 139520), (640, 133852), (872, 98240), (1090, 78592), (1228, 69760), (1280, 66926), (1535, 55808), (1744, 49120), (2180, 39296), (2456, 34880), (2560, 33463), (3070, 27904), (3488, 24560), (4360, 19648), (4912, 17440), (6140, 13952), (6976, 12280), (8720, 9824)]