420309040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{1009}}^1$

素因数の和:1190

約数の個数: 80

約数和(自身を含む): 1009935360

約数和(自身を除く): 589626320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 127, 164, 205, 254, 328, 410, 508, 635, 656, 820, 1009, 1016, 1270, 1640, 2018, 2032, 2540, 3280, 4036, 5045, 5080, 5207, 8072, 10090, 10160, 10414, 16144, 20180, 20828, 26035, 40360, 41369, 41656, 52070, 80720, 82738, 83312, 104140, 128143, 165476, 206845, 208280, 256286, 330952, 413690, 416560, 512572, 640715, 661904, 827380, 1025144, 1281430, 1654760, 2050288, 2562860, 3309520, 5125720, 5253863, 10251440, 10507726, 21015452, 26269315, 42030904, 52538630, 84061808, 105077260, 210154520, 420309040]

約数ペア:

[(1, 420309040), (2, 210154520), (4, 105077260), (5, 84061808), (8, 52538630), (10, 42030904), (16, 26269315), (20, 21015452), (40, 10507726), (41, 10251440), (80, 5253863), (82, 5125720), (127, 3309520), (164, 2562860), (205, 2050288), (254, 1654760), (328, 1281430), (410, 1025144), (508, 827380), (635, 661904), (656, 640715), (820, 512572), (1009, 416560), (1016, 413690), (1270, 330952), (1640, 256286), (2018, 208280), (2032, 206845), (2540, 165476), (3280, 128143), (4036, 104140), (5045, 83312), (5080, 82738), (5207, 80720), (8072, 52070), (10090, 41656), (10160, 41369), (10414, 40360), (16144, 26035), (20180, 20828)]