280128080

素因数分解:

$2^4\times 5^1\times {\mathrm{3501601}}^1$

素因数の和:3501614

約数の個数: 20

約数和(自身を含む): 651297972

約数和(自身を除く): 371169892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3501601, 7003202, 14006404, 17508005, 28012808, 35016010, 56025616, 70032020, 140064040, 280128080]

約数ペア:

[(1, 280128080), (2, 140064040), (4, 70032020), (5, 56025616), (8, 35016010), (10, 28012808), (16, 17508005), (20, 14006404), (40, 7003202), (80, 3501601)]