199847216

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{30539}}^1$

素因数の和:30956

約数の個数: 20

約数和(自身を含む): 388163400

約数和(自身を除く): 188316184

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3272, 6544, 30539, 61078, 122156, 244312, 488624, 12490451, 24980902, 49961804, 99923608, 199847216]

約数ペア:

[(1, 199847216), (2, 99923608), (4, 49961804), (8, 24980902), (16, 12490451), (409, 488624), (818, 244312), (1636, 122156), (3272, 61078), (6544, 30539)]