279536720

素因数分解:

$2^4\times 5^1\times {\mathrm{3494209}}^1$

素因数の和:3494222

約数の個数: 20

約数和(自身を含む): 649923060

約数和(自身を除く): 370386340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3494209, 6988418, 13976836, 17471045, 27953672, 34942090, 55907344, 69884180, 139768360, 279536720]

約数ペア:

[(1, 279536720), (2, 139768360), (4, 69884180), (5, 55907344), (8, 34942090), (10, 27953672), (16, 17471045), (20, 13976836), (40, 6988418), (80, 3494209)]