20109208

素因数分解:

$2^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1193}}^1$

素因数の和:1256

約数の個数: 48

約数和(自身を含む): 44918280

約数和(自身を除く): 24809072

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 49, 56, 86, 98, 172, 196, 301, 344, 392, 602, 1193, 1204, 2107, 2386, 2408, 4214, 4772, 8351, 8428, 9544, 16702, 16856, 33404, 51299, 58457, 66808, 102598, 116914, 205196, 233828, 359093, 410392, 467656, 718186, 1436372, 2513651, 2872744, 5027302, 10054604, 20109208]

約数ペア:

[(1, 20109208), (2, 10054604), (4, 5027302), (7, 2872744), (8, 2513651), (14, 1436372), (28, 718186), (43, 467656), (49, 410392), (56, 359093), (86, 233828), (98, 205196), (172, 116914), (196, 102598), (301, 66808), (344, 58457), (392, 51299), (602, 33404), (1193, 16856), (1204, 16702), (2107, 9544), (2386, 8428), (2408, 8351), (4214, 4772)]