77851984

素因数分解:

$2^4\times 7^2\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:720

約数の個数: 60

約数和(自身を含む): 176700000

約数和(自身を除く): 98848016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 199, 392, 398, 499, 784, 796, 998, 1393, 1592, 1996, 2786, 3184, 3493, 3992, 5572, 6986, 7984, 9751, 11144, 13972, 19502, 22288, 24451, 27944, 39004, 48902, 55888, 78008, 97804, 99301, 156016, 195608, 198602, 391216, 397204, 695107, 794408, 1390214, 1588816, 2780428, 4865749, 5560856, 9731498, 11121712, 19462996, 38925992, 77851984]

約数ペア:

[(1, 77851984), (2, 38925992), (4, 19462996), (7, 11121712), (8, 9731498), (14, 5560856), (16, 4865749), (28, 2780428), (49, 1588816), (56, 1390214), (98, 794408), (112, 695107), (196, 397204), (199, 391216), (392, 198602), (398, 195608), (499, 156016), (784, 99301), (796, 97804), (998, 78008), (1393, 55888), (1592, 48902), (1996, 39004), (2786, 27944), (3184, 24451), (3493, 22288), (3992, 19502), (5572, 13972), (6986, 11144), (7984, 9751)]