3920144

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{499}}^1$

素因数の和:998

約数の個数: 20

約数和(自身を含む): 7626000

約数和(自身を除く): 3705856

約数列:

[1, 2, 4, 8, 16, 491, 499, 982, 998, 1964, 1996, 3928, 3992, 7856, 7984, 245009, 490018, 980036, 1960072, 3920144]

約数ペア:

[(1, 3920144), (2, 1960072), (4, 980036), (8, 490018), (16, 245009), (491, 7984), (499, 7856), (982, 3992), (998, 3928), (1964, 1996)]