220169860

素因数分解:

$2^2\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{5507}}^1$

素因数の和:7515

約数の個数: 24

約数和(自身を含む): 462672000

約数和(自身を除く): 242502140

約数列:

[1, 2, 4, 5, 10, 20, 1999, 3998, 5507, 7996, 9995, 11014, 19990, 22028, 27535, 39980, 55070, 110140, 11008493, 22016986, 44033972, 55042465, 110084930, 220169860]

約数ペア:

[(1, 220169860), (2, 110084930), (4, 55042465), (5, 44033972), (10, 22016986), (20, 11008493), (1999, 110140), (3998, 55070), (5507, 39980), (7996, 27535), (9995, 22028), (11014, 19990)]