1119440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1999}}^1$

素因数の和:2019

約数の個数: 40

約数和(自身を含む): 2976000

約数和(自身を除く): 1856560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1999, 3998, 7996, 9995, 13993, 15992, 19990, 27986, 31984, 39980, 55972, 69965, 79960, 111944, 139930, 159920, 223888, 279860, 559720, 1119440]

約数ペア:

[(1, 1119440), (2, 559720), (4, 279860), (5, 223888), (7, 159920), (8, 139930), (10, 111944), (14, 79960), (16, 69965), (20, 55972), (28, 39980), (35, 31984), (40, 27986), (56, 19990), (70, 15992), (80, 13993), (112, 9995), (140, 7996), (280, 3998), (560, 1999)]