20716500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{1973}}^1$

素因数の和:2002

約数の個数: 96

約数和(自身を含む): 68979456

約数和(自身を除く): 48262956

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 125, 140, 150, 175, 210, 250, 300, 350, 375, 420, 500, 525, 700, 750, 875, 1050, 1500, 1750, 1973, 2100, 2625, 3500, 3946, 5250, 5919, 7892, 9865, 10500, 11838, 13811, 19730, 23676, 27622, 29595, 39460, 41433, 49325, 55244, 59190, 69055, 82866, 98650, 118380, 138110, 147975, 165732, 197300, 207165, 246625, 276220, 295950, 345275, 414330, 493250, 591900, 690550, 739875, 828660, 986500, 1035825, 1381100, 1479750, 1726375, 2071650, 2959500, 3452750, 4143300, 5179125, 6905500, 10358250, 20716500]

約数ペア:

[(1, 20716500), (2, 10358250), (3, 6905500), (4, 5179125), (5, 4143300), (6, 3452750), (7, 2959500), (10, 2071650), (12, 1726375), (14, 1479750), (15, 1381100), (20, 1035825), (21, 986500), (25, 828660), (28, 739875), (30, 690550), (35, 591900), (42, 493250), (50, 414330), (60, 345275), (70, 295950), (75, 276220), (84, 246625), (100, 207165), (105, 197300), (125, 165732), (140, 147975), (150, 138110), (175, 118380), (210, 98650), (250, 82866), (300, 69055), (350, 59190), (375, 55244), (420, 49325), (500, 41433), (525, 39460), (700, 29595), (750, 27622), (875, 23676), (1050, 19730), (1500, 13811), (1750, 11838), (1973, 10500), (2100, 9865), (2625, 7892), (3500, 5919), (3946, 5250)]