639235294

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{56983}}^1$

素因数の和:57135

約数の個数: 16

約数和(自身を含む): 984683520

約数和(自身を除く): 345448226

約数列:

[1, 2, 71, 79, 142, 158, 5609, 11218, 56983, 113966, 4045793, 4501657, 8091586, 9003314, 319617647, 639235294]

約数ペア:

[(1, 639235294), (2, 319617647), (71, 9003314), (79, 8091586), (142, 4501657), (158, 4045793), (5609, 113966), (11218, 56983)]