20763720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:575

約数の個数: 96

約数和(自身を含む): 68136120

約数和(自身を除く): 47372400

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, 421, 548, 685, 822, 842, 1096, 1233, 1263, 1370, 1644, 1684, 2055, 2105, 2466, 2526, 2740, 3288, 3368, 3789, 4110, 4210, 4932, 5052, 5480, 6165, 6315, 7578, 8220, 8420, 9864, 10104, 12330, 12630, 15156, 16440, 16840, 18945, 24660, 25260, 30312, 37890, 49320, 50520, 57677, 75780, 115354, 151560, 173031, 230708, 288385, 346062, 461416, 519093, 576770, 692124, 865155, 1038186, 1153540, 1384248, 1730310, 2076372, 2307080, 2595465, 3460620, 4152744, 5190930, 6921240, 10381860, 20763720]

約数ペア:

[(1, 20763720), (2, 10381860), (3, 6921240), (4, 5190930), (5, 4152744), (6, 3460620), (8, 2595465), (9, 2307080), (10, 2076372), (12, 1730310), (15, 1384248), (18, 1153540), (20, 1038186), (24, 865155), (30, 692124), (36, 576770), (40, 519093), (45, 461416), (60, 346062), (72, 288385), (90, 230708), (120, 173031), (137, 151560), (180, 115354), (274, 75780), (360, 57677), (411, 50520), (421, 49320), (548, 37890), (685, 30312), (822, 25260), (842, 24660), (1096, 18945), (1233, 16840), (1263, 16440), (1370, 15156), (1644, 12630), (1684, 12330), (2055, 10104), (2105, 9864), (2466, 8420), (2526, 8220), (2740, 7578), (3288, 6315), (3368, 6165), (3789, 5480), (4110, 5052), (4210, 4932)]