20149990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{287857}}^1$

素因数の和:287871

約数の個数: 16

約数和(自身を含む): 41451552

約数和(自身を除く): 21301562

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 287857, 575714, 1439285, 2014999, 2878570, 4029998, 10074995, 20149990]

約数ペア:

[(1, 20149990), (2, 10074995), (5, 4029998), (7, 2878570), (10, 2014999), (14, 1439285), (35, 575714), (70, 287857)]