647690

素因数分解:

$2^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:517

約数の個数: 16

約数和(自身を含む): 1175040

約数和(自身を除く): 527350

約数列:

[1, 2, 5, 10, 239, 271, 478, 542, 1195, 1355, 2390, 2710, 64769, 129538, 323845, 647690]

約数ペア:

[(1, 647690), (2, 323845), (5, 129538), (10, 64769), (239, 2710), (271, 2390), (478, 1355), (542, 1195)]