16159760

素因数分解:

$2^4\times 5^1\times {\mathrm{201997}}^1$

素因数の和:202010

約数の個数: 20

約数和(自身を含む): 37571628

約数和(自身を除く): 21411868

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 201997, 403994, 807988, 1009985, 1615976, 2019970, 3231952, 4039940, 8079880, 16159760]

約数ペア:

[(1, 16159760), (2, 8079880), (4, 4039940), (5, 3231952), (8, 2019970), (10, 1615976), (16, 1009985), (20, 807988), (40, 403994), (80, 201997)]