407260048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1957981}}^1$

素因数の和:1958002

約数の個数: 20

約数和(自身を含む): 849764188

約数和(自身を除く): 442504140

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1957981, 3915962, 7831924, 15663848, 25453753, 31327696, 50907506, 101815012, 203630024, 407260048]

約数ペア:

[(1, 407260048), (2, 203630024), (4, 101815012), (8, 50907506), (13, 31327696), (16, 25453753), (26, 15663848), (52, 7831924), (104, 3915962), (208, 1957981)]