538336720

素因数分解:

$2^4\times 5^1\times {\mathrm{6729209}}^1$

素因数の和:6729222

約数の個数: 20

約数和(自身を含む): 1251633060

約数和(自身を除く): 713296340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6729209, 13458418, 26916836, 33646045, 53833672, 67292090, 107667344, 134584180, 269168360, 538336720]

約数ペア:

[(1, 538336720), (2, 269168360), (4, 134584180), (5, 107667344), (8, 67292090), (10, 53833672), (16, 33646045), (20, 26916836), (40, 13458418), (80, 6729209)]