642239824

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{2112631}}^1$

素因数の和:2112658

約数の個数: 20

約数和(自身を含む): 1309831840

約数和(自身を除く): 667592016

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 2112631, 4225262, 8450524, 16901048, 33802096, 40139989, 80279978, 160559956, 321119912, 642239824]

約数ペア:

[(1, 642239824), (2, 321119912), (4, 160559956), (8, 80279978), (16, 40139989), (19, 33802096), (38, 16901048), (76, 8450524), (152, 4225262), (304, 2112631)]