1555247920

素因数分解:

$2^4\times 5^1\times {\mathrm{19440599}}^1$

素因数の和:19440612

約数の個数: 20

約数和(自身を含む): 3615951600

約数和(自身を除く): 2060703680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 19440599, 38881198, 77762396, 97202995, 155524792, 194405990, 311049584, 388811980, 777623960, 1555247920]

約数ペア:

[(1, 1555247920), (2, 777623960), (4, 388811980), (5, 311049584), (8, 194405990), (10, 155524792), (16, 97202995), (20, 77762396), (40, 38881198), (80, 19440599)]