131312120

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{32503}}^1$

素因数の和:32615

約数の個数: 32

約数和(自身を含む): 298386720

約数和(自身を除く): 167074600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 32503, 65006, 130012, 162515, 260024, 325030, 650060, 1300120, 3282803, 6565606, 13131212, 16414015, 26262424, 32828030, 65656060, 131312120]

約数ペア:

[(1, 131312120), (2, 65656060), (4, 32828030), (5, 26262424), (8, 16414015), (10, 13131212), (20, 6565606), (40, 3282803), (101, 1300120), (202, 650060), (404, 325030), (505, 260024), (808, 162515), (1010, 130012), (2020, 65006), (4040, 32503)]