16458220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20071}}^1$

素因数の和:20121

約数の個数: 24

約数和(自身を含む): 35407008

約数和(自身を除く): 18948788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 20071, 40142, 80284, 100355, 200710, 401420, 822911, 1645822, 3291644, 4114555, 8229110, 16458220]

約数ペア:

[(1, 16458220), (2, 8229110), (4, 4114555), (5, 3291644), (10, 1645822), (20, 822911), (41, 401420), (82, 200710), (164, 100355), (205, 80284), (410, 40142), (820, 20071)]