129270080

素因数分解:

$2^6\times 5^1\times {\mathrm{403969}}^1$

素因数の和:403986

約数の個数: 28

約数和(自身を含む): 307825140

約数和(自身を除く): 178555060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 403969, 807938, 1615876, 2019845, 3231752, 4039690, 6463504, 8079380, 12927008, 16158760, 25854016, 32317520, 64635040, 129270080]

約数ペア:

[(1, 129270080), (2, 64635040), (4, 32317520), (5, 25854016), (8, 16158760), (10, 12927008), (16, 8079380), (20, 6463504), (32, 4039690), (40, 3231752), (64, 2019845), (80, 1615876), (160, 807938), (320, 403969)]