64407780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1999}}^1$

素因数の和:2193

約数の個数: 72

約数和(自身を含む): 196560000

約数和(自身を除く): 132152220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 716, 895, 1074, 1611, 1790, 1999, 2148, 2685, 3222, 3580, 3998, 5370, 5997, 6444, 7996, 8055, 9995, 10740, 11994, 16110, 17991, 19990, 23988, 29985, 32220, 35982, 39980, 59970, 71964, 89955, 119940, 179910, 357821, 359820, 715642, 1073463, 1431284, 1789105, 2146926, 3220389, 3578210, 4293852, 5367315, 6440778, 7156420, 10734630, 12881556, 16101945, 21469260, 32203890, 64407780]

約数ペア:

[(1, 64407780), (2, 32203890), (3, 21469260), (4, 16101945), (5, 12881556), (6, 10734630), (9, 7156420), (10, 6440778), (12, 5367315), (15, 4293852), (18, 3578210), (20, 3220389), (30, 2146926), (36, 1789105), (45, 1431284), (60, 1073463), (90, 715642), (179, 359820), (180, 357821), (358, 179910), (537, 119940), (716, 89955), (895, 71964), (1074, 59970), (1611, 39980), (1790, 35982), (1999, 32220), (2148, 29985), (2685, 23988), (3222, 19990), (3580, 17991), (3998, 16110), (5370, 11994), (5997, 10740), (6444, 9995), (7996, 8055)]