200459720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1999}}^1$

素因数の和:2142

約数の個数: 64

約数和(自身を含む): 475200000

約数和(自身を除く): 274740280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 184, 218, 230, 436, 460, 545, 872, 920, 1090, 1999, 2180, 2507, 3998, 4360, 5014, 7996, 9995, 10028, 12535, 15992, 19990, 20056, 25070, 39980, 45977, 50140, 79960, 91954, 100280, 183908, 217891, 229885, 367816, 435782, 459770, 871564, 919540, 1089455, 1743128, 1839080, 2178910, 4357820, 5011493, 8715640, 10022986, 20045972, 25057465, 40091944, 50114930, 100229860, 200459720]

約数ペア:

[(1, 200459720), (2, 100229860), (4, 50114930), (5, 40091944), (8, 25057465), (10, 20045972), (20, 10022986), (23, 8715640), (40, 5011493), (46, 4357820), (92, 2178910), (109, 1839080), (115, 1743128), (184, 1089455), (218, 919540), (230, 871564), (436, 459770), (460, 435782), (545, 367816), (872, 229885), (920, 217891), (1090, 183908), (1999, 100280), (2180, 91954), (2507, 79960), (3998, 50140), (4360, 45977), (5014, 39980), (7996, 25070), (9995, 20056), (10028, 19990), (12535, 15992)]