179989580

素因数分解:

$2^2\times 5^1\times {\mathrm{2003}}^1\times {\mathrm{4493}}^1$

素因数の和:6505

約数の個数: 24

約数和(自身を含む): 378250992

約数和(自身を除く): 198261412

約数列:

[1, 2, 4, 5, 10, 20, 2003, 4006, 4493, 8012, 8986, 10015, 17972, 20030, 22465, 40060, 44930, 89860, 8999479, 17998958, 35997916, 44997395, 89994790, 179989580]

約数ペア:

[(1, 179989580), (2, 89994790), (4, 44997395), (5, 35997916), (10, 17998958), (20, 8999479), (2003, 89860), (4006, 44930), (4493, 40060), (8012, 22465), (8986, 20030), (10015, 17972)]