20215544

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{743}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 40176000

約数和(自身を除く): 19960456

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 179, 358, 716, 743, 1432, 1486, 2972, 3401, 5944, 6802, 13604, 14117, 27208, 28234, 56468, 112936, 132997, 265994, 531988, 1063976, 2526943, 5053886, 10107772, 20215544]

約数ペア:

[(1, 20215544), (2, 10107772), (4, 5053886), (8, 2526943), (19, 1063976), (38, 531988), (76, 265994), (152, 132997), (179, 112936), (358, 56468), (716, 28234), (743, 27208), (1432, 14117), (1486, 13604), (2972, 6802), (3401, 5944)]