55840820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{398863}}^1$

素因数の和:398879

約数の個数: 24

約数和(自身を含む): 134018304

約数和(自身を除く): 78177484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 398863, 797726, 1595452, 1994315, 2792041, 3988630, 5584082, 7977260, 11168164, 13960205, 27920410, 55840820]

約数ペア:

[(1, 55840820), (2, 27920410), (4, 13960205), (5, 11168164), (7, 7977260), (10, 5584082), (14, 3988630), (20, 2792041), (28, 1994315), (35, 1595452), (70, 797726), (140, 398863)]