639772004

素因数分解:

$2^2\times {\mathrm{3167}}^1\times {\mathrm{50503}}^1$

素因数の和:53674

約数の個数: 12

約数和(自身を含む): 1119976704

約数和(自身を除く): 480204700

約数列:

[1, 2, 4, 3167, 6334, 12668, 50503, 101006, 202012, 159943001, 319886002, 639772004]

約数ペア:

[(1, 639772004), (2, 319886002), (4, 159943001), (3167, 202012), (6334, 101006), (12668, 50503)]