179630140

素因数分解:

$2^2\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{4493}}^1$

素因数の和:6501

約数の個数: 24

約数和(自身を含む): 377496000

約数和(自身を除く): 197865860

約数列:

[1, 2, 4, 5, 10, 20, 1999, 3998, 4493, 7996, 8986, 9995, 17972, 19990, 22465, 39980, 44930, 89860, 8981507, 17963014, 35926028, 44907535, 89815070, 179630140]

約数ペア:

[(1, 179630140), (2, 89815070), (4, 44907535), (5, 35926028), (10, 17963014), (20, 8981507), (1999, 89860), (3998, 44930), (4493, 39980), (7996, 22465), (8986, 19990), (9995, 17972)]