80497480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{287491}}^1$

素因数の和:287509

約数の個数: 32

約数和(自身を含む): 206994240

約数和(自身を除く): 126496760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 287491, 574982, 1149964, 1437455, 2012437, 2299928, 2874910, 4024874, 5749820, 8049748, 10062185, 11499640, 16099496, 20124370, 40248740, 80497480]

約数ペア:

[(1, 80497480), (2, 40248740), (4, 20124370), (5, 16099496), (7, 11499640), (8, 10062185), (10, 8049748), (14, 5749820), (20, 4024874), (28, 2874910), (35, 2299928), (40, 2012437), (56, 1437455), (70, 1149964), (140, 574982), (280, 287491)]