559720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1999}}^1$

素因数の和:2017

約数の個数: 32

約数和(自身を含む): 1440000

約数和(自身を除く): 880280

約数列:

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

約数ペア:

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