66139990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{944857}}^1$

素因数の和:944871

約数の個数: 16

約数和(自身を含む): 136059552

約数和(自身を除く): 69919562

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 944857, 1889714, 4724285, 6613999, 9448570, 13227998, 33069995, 66139990]

約数ペア:

[(1, 66139990), (2, 33069995), (5, 13227998), (7, 9448570), (10, 6613999), (14, 4724285), (35, 1889714), (70, 944857)]