68756180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{439}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 149022720

約数和(自身を除く): 80266540

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 191, 205, 382, 410, 439, 764, 820, 878, 955, 1756, 1910, 2195, 3820, 4390, 7831, 8780, 15662, 17999, 31324, 35998, 39155, 71996, 78310, 83849, 89995, 156620, 167698, 179990, 335396, 359980, 419245, 838490, 1676980, 3437809, 6875618, 13751236, 17189045, 34378090, 68756180]

約数ペア:

[(1, 68756180), (2, 34378090), (4, 17189045), (5, 13751236), (10, 6875618), (20, 3437809), (41, 1676980), (82, 838490), (164, 419245), (191, 359980), (205, 335396), (382, 179990), (410, 167698), (439, 156620), (764, 89995), (820, 83849), (878, 78310), (955, 71996), (1756, 39155), (1910, 35998), (2195, 31324), (3820, 17999), (4390, 15662), (7831, 8780)]