639330448

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{1737311}}^1$

素因数の和:1737342

約数の個数: 20

約数和(自身を含む): 1292560128

約数和(自身を除く): 653229680

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 1737311, 3474622, 6949244, 13898488, 27796976, 39958153, 79916306, 159832612, 319665224, 639330448]

約数ペア:

[(1, 639330448), (2, 319665224), (4, 159832612), (8, 79916306), (16, 39958153), (23, 27796976), (46, 13898488), (92, 6949244), (184, 3474622), (368, 1737311)]