7926820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 18361728

約数和(自身を除く): 10434908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 263, 274, 526, 548, 685, 1052, 1315, 1370, 1507, 2630, 2740, 2893, 3014, 5260, 5786, 6028, 7535, 11572, 14465, 15070, 28930, 30140, 36031, 57860, 72062, 144124, 180155, 360310, 396341, 720620, 792682, 1585364, 1981705, 3963410, 7926820]

約数ペア:

[(1, 7926820), (2, 3963410), (4, 1981705), (5, 1585364), (10, 792682), (11, 720620), (20, 396341), (22, 360310), (44, 180155), (55, 144124), (110, 72062), (137, 57860), (220, 36031), (263, 30140), (274, 28930), (526, 15070), (548, 14465), (685, 11572), (1052, 7535), (1315, 6028), (1370, 5786), (1507, 5260), (2630, 3014), (2740, 2893)]