20665080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:573

約数の個数: 96

約数和(自身を含む): 67813200

約数和(自身を除く): 47148120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 137, 180, 274, 360, 411, 419, 548, 685, 822, 838, 1096, 1233, 1257, 1370, 1644, 1676, 2055, 2095, 2466, 2514, 2740, 3288, 3352, 3771, 4110, 4190, 4932, 5028, 5480, 6165, 6285, 7542, 8220, 8380, 9864, 10056, 12330, 12570, 15084, 16440, 16760, 18855, 24660, 25140, 30168, 37710, 49320, 50280, 57403, 75420, 114806, 150840, 172209, 229612, 287015, 344418, 459224, 516627, 574030, 688836, 861045, 1033254, 1148060, 1377672, 1722090, 2066508, 2296120, 2583135, 3444180, 4133016, 5166270, 6888360, 10332540, 20665080]

約数ペア:

[(1, 20665080), (2, 10332540), (3, 6888360), (4, 5166270), (5, 4133016), (6, 3444180), (8, 2583135), (9, 2296120), (10, 2066508), (12, 1722090), (15, 1377672), (18, 1148060), (20, 1033254), (24, 861045), (30, 688836), (36, 574030), (40, 516627), (45, 459224), (60, 344418), (72, 287015), (90, 229612), (120, 172209), (137, 150840), (180, 114806), (274, 75420), (360, 57403), (411, 50280), (419, 49320), (548, 37710), (685, 30168), (822, 25140), (838, 24660), (1096, 18855), (1233, 16760), (1257, 16440), (1370, 15084), (1644, 12570), (1676, 12330), (2055, 10056), (2095, 9864), (2466, 8380), (2514, 8220), (2740, 7542), (3288, 6285), (3352, 6165), (3771, 5480), (4110, 5028), (4190, 4932)]