664986430

素因数分解:

$2^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{278237}}^1$

素因数の和:278483

約数の個数: 16

約数和(自身を含む): 1201988160

約数和(自身を除く): 537001730

約数列:

[1, 2, 5, 10, 239, 478, 1195, 2390, 278237, 556474, 1391185, 2782370, 66498643, 132997286, 332493215, 664986430]

約数ペア:

[(1, 664986430), (2, 332493215), (5, 132997286), (10, 66498643), (239, 2782370), (478, 1391185), (1195, 556474), (2390, 278237)]