5488420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 13305600

約数和(自身を除く): 7817180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 199, 394, 398, 788, 796, 985, 995, 1379, 1393, 1970, 1990, 2758, 2786, 3940, 3980, 5516, 5572, 6895, 6965, 13790, 13930, 27580, 27860, 39203, 78406, 156812, 196015, 274421, 392030, 548842, 784060, 1097684, 1372105, 2744210, 5488420]

約数ペア:

[(1, 5488420), (2, 2744210), (4, 1372105), (5, 1097684), (7, 784060), (10, 548842), (14, 392030), (20, 274421), (28, 196015), (35, 156812), (70, 78406), (140, 39203), (197, 27860), (199, 27580), (394, 13930), (398, 13790), (788, 6965), (796, 6895), (985, 5572), (995, 5516), (1379, 3980), (1393, 3940), (1970, 2786), (1990, 2758)]