40049872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{131743}}^1$

素因数の和:131770

約数の個数: 20

約数和(自身を含む): 81681280

約数和(自身を除く): 41631408

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 131743, 263486, 526972, 1053944, 2107888, 2503117, 5006234, 10012468, 20024936, 40049872]

約数ペア:

[(1, 40049872), (2, 20024936), (4, 10012468), (8, 5006234), (16, 2503117), (19, 2107888), (38, 1053944), (76, 526972), (152, 263486), (304, 131743)]