255080840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{911003}}^1$

素因数の和:911021

約数の個数: 32

約数和(自身を含む): 655922880

約数和(自身を除く): 400842040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 911003, 1822006, 3644012, 4555015, 6377021, 7288024, 9110030, 12754042, 18220060, 25508084, 31885105, 36440120, 51016168, 63770210, 127540420, 255080840]

約数ペア:

[(1, 255080840), (2, 127540420), (4, 63770210), (5, 51016168), (7, 36440120), (8, 31885105), (10, 25508084), (14, 18220060), (20, 12754042), (28, 9110030), (35, 7288024), (40, 6377021), (56, 4555015), (70, 3644012), (140, 1822006), (280, 911003)]