1556990320

素因数分解:

$2^4\times 5^1\times {\mathrm{19462379}}^1$

素因数の和:19462392

約数の個数: 20

約数和(自身を含む): 3620002680

約数和(自身を除く): 2063012360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 19462379, 38924758, 77849516, 97311895, 155699032, 194623790, 311398064, 389247580, 778495160, 1556990320]

約数ペア:

[(1, 1556990320), (2, 778495160), (4, 389247580), (5, 311398064), (8, 194623790), (10, 155699032), (16, 97311895), (20, 77849516), (40, 38924758), (80, 19462379)]