128767660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{919769}}^1$

素因数の和:919785

約数の個数: 24

約数和(自身を含む): 309042720

約数和(自身を除く): 180275060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 919769, 1839538, 3679076, 4598845, 6438383, 9197690, 12876766, 18395380, 25753532, 32191915, 64383830, 128767660]

約数ペア:

[(1, 128767660), (2, 64383830), (4, 32191915), (5, 25753532), (7, 18395380), (10, 12876766), (14, 9197690), (20, 6438383), (28, 4598845), (35, 3679076), (70, 1839538), (140, 919769)]