8819020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{8999}}^1$

素因数の和:9022

約数の個数: 36

約数和(自身を含む): 21546000

約数和(自身を除く): 12726980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 8999, 17998, 35996, 44995, 62993, 89990, 125986, 179980, 251972, 314965, 440951, 629930, 881902, 1259860, 1763804, 2204755, 4409510, 8819020]

約数ペア:

[(1, 8819020), (2, 4409510), (4, 2204755), (5, 1763804), (7, 1259860), (10, 881902), (14, 629930), (20, 440951), (28, 314965), (35, 251972), (49, 179980), (70, 125986), (98, 89990), (140, 62993), (196, 44995), (245, 35996), (490, 17998), (980, 8999)]