217149520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{967}}^1$

素因数の和:1388

約数の個数: 80

約数和(自身を含む): 579034368

約数和(自身を除く): 361884848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 401, 560, 802, 967, 1604, 1934, 2005, 2807, 3208, 3868, 4010, 4835, 5614, 6416, 6769, 7736, 8020, 9670, 11228, 13538, 14035, 15472, 16040, 19340, 22456, 27076, 28070, 32080, 33845, 38680, 44912, 54152, 56140, 67690, 77360, 108304, 112280, 135380, 224560, 270760, 387767, 541520, 775534, 1551068, 1938835, 2714369, 3102136, 3877670, 5428738, 6204272, 7755340, 10857476, 13571845, 15510680, 21714952, 27143690, 31021360, 43429904, 54287380, 108574760, 217149520]

約数ペア:

[(1, 217149520), (2, 108574760), (4, 54287380), (5, 43429904), (7, 31021360), (8, 27143690), (10, 21714952), (14, 15510680), (16, 13571845), (20, 10857476), (28, 7755340), (35, 6204272), (40, 5428738), (56, 3877670), (70, 3102136), (80, 2714369), (112, 1938835), (140, 1551068), (280, 775534), (401, 541520), (560, 387767), (802, 270760), (967, 224560), (1604, 135380), (1934, 112280), (2005, 108304), (2807, 77360), (3208, 67690), (3868, 56140), (4010, 54152), (4835, 44912), (5614, 38680), (6416, 33845), (6769, 32080), (7736, 28070), (8020, 27076), (9670, 22456), (11228, 19340), (13538, 16040), (14035, 15472)]