1256556440

素因数分解:

$2^3\times 5^1\times {\mathrm{31413911}}^1$

素因数の和:31413922

約数の個数: 16

約数和(自身を含む): 2827252080

約数和(自身を除く): 1570695640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 31413911, 62827822, 125655644, 157069555, 251311288, 314139110, 628278220, 1256556440]

約数ペア:

[(1, 1256556440), (2, 628278220), (4, 314139110), (5, 251311288), (8, 157069555), (10, 125655644), (20, 62827822), (40, 31413911)]