520020319

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1\times {\mathrm{547}}^1$

素因数の和:935

約数の個数: 32

約数和(自身を含む): 663842816

約数和(自身を除く): 143822497

約数列:

[1, 7, 13, 31, 91, 217, 337, 403, 547, 2359, 2821, 3829, 4381, 7111, 10447, 16957, 30667, 49777, 73129, 118699, 135811, 184339, 220441, 950677, 1290373, 1543087, 2396407, 5714509, 16774849, 40001563, 74288617, 520020319]

約数ペア:

[(1, 520020319), (7, 74288617), (13, 40001563), (31, 16774849), (91, 5714509), (217, 2396407), (337, 1543087), (403, 1290373), (547, 950677), (2359, 220441), (2821, 184339), (3829, 135811), (4381, 118699), (7111, 73129), (10447, 49777), (16957, 30667)]