20218043728

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9090847}}^1$

素因数の和:9090994

約数の個数: 20

約数和(自身を含む): 39454280320

約数和(自身を除く): 19236236592

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9090847, 18181694, 36363388, 72726776, 145453552, 1263627733, 2527255466, 5054510932, 10109021864, 20218043728]

約数ペア:

[(1, 20218043728), (2, 10109021864), (4, 5054510932), (8, 2527255466), (16, 1263627733), (139, 145453552), (278, 72726776), (556, 36363388), (1112, 18181694), (2224, 9090847)]