31707280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:424

約数の個数: 80

約数和(自身を含む): 81316224

約数和(自身を除く): 49608944

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 137, 176, 220, 263, 274, 440, 526, 548, 685, 880, 1052, 1096, 1315, 1370, 1507, 2104, 2192, 2630, 2740, 2893, 3014, 4208, 5260, 5480, 5786, 6028, 7535, 10520, 10960, 11572, 12056, 14465, 15070, 21040, 23144, 24112, 28930, 30140, 36031, 46288, 57860, 60280, 72062, 115720, 120560, 144124, 180155, 231440, 288248, 360310, 396341, 576496, 720620, 792682, 1441240, 1585364, 1981705, 2882480, 3170728, 3963410, 6341456, 7926820, 15853640, 31707280]

約数ペア:

[(1, 31707280), (2, 15853640), (4, 7926820), (5, 6341456), (8, 3963410), (10, 3170728), (11, 2882480), (16, 1981705), (20, 1585364), (22, 1441240), (40, 792682), (44, 720620), (55, 576496), (80, 396341), (88, 360310), (110, 288248), (137, 231440), (176, 180155), (220, 144124), (263, 120560), (274, 115720), (440, 72062), (526, 60280), (548, 57860), (685, 46288), (880, 36031), (1052, 30140), (1096, 28930), (1315, 24112), (1370, 23144), (1507, 21040), (2104, 15070), (2192, 14465), (2630, 12056), (2740, 11572), (2893, 10960), (3014, 10520), (4208, 7535), (5260, 6028), (5480, 5786)]