80751520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:398

約数の個数: 96

約数和(自身を含む): 203575680

約数和(自身を除く): 122824160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 101, 152, 160, 190, 202, 263, 304, 380, 404, 505, 526, 608, 760, 808, 1010, 1052, 1315, 1520, 1616, 1919, 2020, 2104, 2630, 3040, 3232, 3838, 4040, 4208, 4997, 5260, 7676, 8080, 8416, 9595, 9994, 10520, 15352, 16160, 19190, 19988, 21040, 24985, 26563, 30704, 38380, 39976, 42080, 49970, 53126, 61408, 76760, 79952, 99940, 106252, 132815, 153520, 159904, 199880, 212504, 265630, 307040, 399760, 425008, 504697, 531260, 799520, 850016, 1009394, 1062520, 2018788, 2125040, 2523485, 4037576, 4250080, 5046970, 8075152, 10093940, 16150304, 20187880, 40375760, 80751520]

約数ペア:

[(1, 80751520), (2, 40375760), (4, 20187880), (5, 16150304), (8, 10093940), (10, 8075152), (16, 5046970), (19, 4250080), (20, 4037576), (32, 2523485), (38, 2125040), (40, 2018788), (76, 1062520), (80, 1009394), (95, 850016), (101, 799520), (152, 531260), (160, 504697), (190, 425008), (202, 399760), (263, 307040), (304, 265630), (380, 212504), (404, 199880), (505, 159904), (526, 153520), (608, 132815), (760, 106252), (808, 99940), (1010, 79952), (1052, 76760), (1315, 61408), (1520, 53126), (1616, 49970), (1919, 42080), (2020, 39976), (2104, 38380), (2630, 30704), (3040, 26563), (3232, 24985), (3838, 21040), (4040, 19988), (4208, 19190), (4997, 16160), (5260, 15352), (7676, 10520), (8080, 9994), (8416, 9595)]