217823090

素因数分解:

$2^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{50539}}^1$

素因数の和:50977

約数の個数: 16

約数和(自身を含む): 392999040

約数和(自身を除く): 175175950

約数列:

[1, 2, 5, 10, 431, 862, 2155, 4310, 50539, 101078, 252695, 505390, 21782309, 43564618, 108911545, 217823090]

約数ペア:

[(1, 217823090), (2, 108911545), (5, 43564618), (10, 21782309), (431, 505390), (862, 252695), (2155, 101078), (4310, 50539)]