257155360

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20873}}^1$

素因数の和:20906

約数の個数: 96

約数和(自身を含む): 757475712

約数和(自身を除く): 500320352

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1760, 2464, 3080, 6160, 12320, 20873, 41746, 83492, 104365, 146111, 166984, 208730, 229603, 292222, 333968, 417460, 459206, 584444, 667936, 730555, 834920, 918412, 1148015, 1168888, 1461110, 1607221, 1669840, 1836824, 2296030, 2337776, 2922220, 3214442, 3339680, 3673648, 4592060, 4675552, 5844440, 6428884, 7347296, 8036105, 9184120, 11688880, 12857768, 16072210, 18368240, 23377760, 25715536, 32144420, 36736480, 51431072, 64288840, 128577680, 257155360]

約数ペア:

[(1, 257155360), (2, 128577680), (4, 64288840), (5, 51431072), (7, 36736480), (8, 32144420), (10, 25715536), (11, 23377760), (14, 18368240), (16, 16072210), (20, 12857768), (22, 11688880), (28, 9184120), (32, 8036105), (35, 7347296), (40, 6428884), (44, 5844440), (55, 4675552), (56, 4592060), (70, 3673648), (77, 3339680), (80, 3214442), (88, 2922220), (110, 2337776), (112, 2296030), (140, 1836824), (154, 1669840), (160, 1607221), (176, 1461110), (220, 1168888), (224, 1148015), (280, 918412), (308, 834920), (352, 730555), (385, 667936), (440, 584444), (560, 459206), (616, 417460), (770, 333968), (880, 292222), (1120, 229603), (1232, 208730), (1540, 166984), (1760, 146111), (2464, 104365), (3080, 83492), (6160, 41746), (12320, 20873)]