388434520

素因数分解:

$2^3\times 5^1\times {\mathrm{9710863}}^1$

素因数の和:9710874

約数の個数: 16

約数和(自身を含む): 873977760

約数和(自身を除く): 485543240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9710863, 19421726, 38843452, 48554315, 77686904, 97108630, 194217260, 388434520]

約数ペア:

[(1, 388434520), (2, 194217260), (4, 97108630), (5, 77686904), (8, 48554315), (10, 38843452), (20, 19421726), (40, 9710863)]