8156840

素因数分解:

$2^3\times 5^1\times {\mathrm{203921}}^1$

素因数の和:203932

約数の個数: 16

約数和(自身を含む): 18352980

約数和(自身を除く): 10196140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 203921, 407842, 815684, 1019605, 1631368, 2039210, 4078420, 8156840]

約数ペア:

[(1, 8156840), (2, 4078420), (4, 2039210), (5, 1631368), (8, 1019605), (10, 815684), (20, 407842), (40, 203921)]