215776720

素因数分解:

$2^4\times 5^1\times {\mathrm{2697209}}^1$

素因数の和:2697222

約数の個数: 20

約数和(自身を含む): 501681060

約数和(自身を除く): 285904340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2697209, 5394418, 10788836, 13486045, 21577672, 26972090, 43155344, 53944180, 107888360, 215776720]

約数ペア:

[(1, 215776720), (2, 107888360), (4, 53944180), (5, 43155344), (8, 26972090), (10, 21577672), (16, 13486045), (20, 10788836), (40, 5394418), (80, 2697209)]