208039720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{742999}}^1$

素因数の和:743017

約数の個数: 32

約数和(自身を含む): 534960000

約数和(自身を除く): 326920280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 742999, 1485998, 2971996, 3714995, 5200993, 5943992, 7429990, 10401986, 14859980, 20803972, 26004965, 29719960, 41607944, 52009930, 104019860, 208039720]

約数ペア:

[(1, 208039720), (2, 104019860), (4, 52009930), (5, 41607944), (7, 29719960), (8, 26004965), (10, 20803972), (14, 14859980), (20, 10401986), (28, 7429990), (35, 5943992), (40, 5200993), (56, 3714995), (70, 2971996), (140, 1485998), (280, 742999)]