678999295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{32341}}^1$

素因数の和:32395

約数の個数: 32

約数和(自身を含む): 978022080

約数和(自身を除く): 299022785

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 1105, 1235, 1615, 4199, 20995, 32341, 161705, 420433, 549797, 614479, 2102165, 2748985, 3072395, 7147361, 7988227, 10446143, 35736805, 39941135, 52230715, 135799859, 678999295]

約数ペア:

[(1, 678999295), (5, 135799859), (13, 52230715), (17, 39941135), (19, 35736805), (65, 10446143), (85, 7988227), (95, 7147361), (221, 3072395), (247, 2748985), (323, 2102165), (1105, 614479), (1235, 549797), (1615, 420433), (4199, 161705), (20995, 32341)]