15855440

素因数分解:

$2^4\times 5^1\times {\mathrm{198193}}^1$

素因数の和:198206

約数の個数: 20

約数和(自身を含む): 36864084

約数和(自身を除く): 21008644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 198193, 396386, 792772, 990965, 1585544, 1981930, 3171088, 3963860, 7927720, 15855440]

約数ペア:

[(1, 15855440), (2, 7927720), (4, 3963860), (5, 3171088), (8, 1981930), (10, 1585544), (16, 990965), (20, 792772), (40, 396386), (80, 198193)]