16976720

素因数分解:

$2^4\times 5^1\times {\mathrm{212209}}^1$

素因数の和:212222

約数の個数: 20

約数和(自身を含む): 39471060

約数和(自身を除く): 22494340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 212209, 424418, 848836, 1061045, 1697672, 2122090, 3395344, 4244180, 8488360, 16976720]

約数ペア:

[(1, 16976720), (2, 8488360), (4, 4244180), (5, 3395344), (8, 2122090), (10, 1697672), (16, 1061045), (20, 848836), (40, 424418), (80, 212209)]