128497920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:440

約数の個数: 144

約数和(自身を含む): 415504320

約数和(自身を除く): 287006400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 109, 120, 128, 160, 192, 218, 240, 256, 307, 320, 327, 384, 436, 480, 545, 614, 640, 654, 768, 872, 921, 960, 1090, 1228, 1280, 1308, 1535, 1635, 1744, 1842, 1920, 2180, 2456, 2616, 3070, 3270, 3488, 3684, 3840, 4360, 4605, 4912, 5232, 6140, 6540, 6976, 7368, 8720, 9210, 9824, 10464, 12280, 13080, 13952, 14736, 17440, 18420, 19648, 20928, 24560, 26160, 27904, 29472, 33463, 34880, 36840, 39296, 41856, 49120, 52320, 58944, 66926, 69760, 73680, 78592, 83712, 98240, 100389, 104640, 117888, 133852, 139520, 147360, 167315, 196480, 200778, 209280, 235776, 267704, 294720, 334630, 392960, 401556, 418560, 501945, 535408, 589440, 669260, 803112, 1003890, 1070816, 1178880, 1338520, 1606224, 2007780, 2141632, 2677040, 3212448, 4015560, 4283264, 5354080, 6424896, 8031120, 8566528, 10708160, 12849792, 16062240, 21416320, 25699584, 32124480, 42832640, 64248960, 128497920]

約数ペア:

[(1, 128497920), (2, 64248960), (3, 42832640), (4, 32124480), (5, 25699584), (6, 21416320), (8, 16062240), (10, 12849792), (12, 10708160), (15, 8566528), (16, 8031120), (20, 6424896), (24, 5354080), (30, 4283264), (32, 4015560), (40, 3212448), (48, 2677040), (60, 2141632), (64, 2007780), (80, 1606224), (96, 1338520), (109, 1178880), (120, 1070816), (128, 1003890), (160, 803112), (192, 669260), (218, 589440), (240, 535408), (256, 501945), (307, 418560), (320, 401556), (327, 392960), (384, 334630), (436, 294720), (480, 267704), (545, 235776), (614, 209280), (640, 200778), (654, 196480), (768, 167315), (872, 147360), (921, 139520), (960, 133852), (1090, 117888), (1228, 104640), (1280, 100389), (1308, 98240), (1535, 83712), (1635, 78592), (1744, 73680), (1842, 69760), (1920, 66926), (2180, 58944), (2456, 52320), (2616, 49120), (3070, 41856), (3270, 39296), (3488, 36840), (3684, 34880), (3840, 33463), (4360, 29472), (4605, 27904), (4912, 26160), (5232, 24560), (6140, 20928), (6540, 19648), (6976, 18420), (7368, 17440), (8720, 14736), (9210, 13952), (9824, 13080), (10464, 12280)]