639203912

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{1125359}}^1$

素因数の和:1125436

約数の個数: 16

約数和(自身を含む): 1215388800

約数和(自身を除く): 576184888

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 1125359, 2250718, 4501436, 9002872, 79900489, 159800978, 319601956, 639203912]

約数ペア:

[(1, 639203912), (2, 319601956), (4, 159800978), (8, 79900489), (71, 9002872), (142, 4501436), (284, 2250718), (568, 1125359)]