28133280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{2791}}^1$

素因数の和:2819

約数の個数: 144

約数和(自身を含む): 109759104

約数和(自身を除く): 81625824

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 2791, 3360, 5040, 5582, 8373, 10080, 11164, 13955, 16746, 19537, 22328, 25119, 27910, 33492, 39074, 41865, 44656, 50238, 55820, 58611, 66984, 78148, 83730, 89312, 97685, 100476, 111640, 117222, 125595, 133968, 156296, 167460, 175833, 195370, 200952, 223280, 234444, 251190, 267936, 293055, 312592, 334920, 351666, 390740, 401904, 446560, 468888, 502380, 586110, 625184, 669840, 703332, 781480, 803808, 879165, 937776, 1004760, 1172220, 1339680, 1406664, 1562960, 1758330, 1875552, 2009520, 2344440, 2813328, 3125920, 3516660, 4019040, 4688880, 5626656, 7033320, 9377760, 14066640, 28133280]

約数ペア:

[(1, 28133280), (2, 14066640), (3, 9377760), (4, 7033320), (5, 5626656), (6, 4688880), (7, 4019040), (8, 3516660), (9, 3125920), (10, 2813328), (12, 2344440), (14, 2009520), (15, 1875552), (16, 1758330), (18, 1562960), (20, 1406664), (21, 1339680), (24, 1172220), (28, 1004760), (30, 937776), (32, 879165), (35, 803808), (36, 781480), (40, 703332), (42, 669840), (45, 625184), (48, 586110), (56, 502380), (60, 468888), (63, 446560), (70, 401904), (72, 390740), (80, 351666), (84, 334920), (90, 312592), (96, 293055), (105, 267936), (112, 251190), (120, 234444), (126, 223280), (140, 200952), (144, 195370), (160, 175833), (168, 167460), (180, 156296), (210, 133968), (224, 125595), (240, 117222), (252, 111640), (280, 100476), (288, 97685), (315, 89312), (336, 83730), (360, 78148), (420, 66984), (480, 58611), (504, 55820), (560, 50238), (630, 44656), (672, 41865), (720, 39074), (840, 33492), (1008, 27910), (1120, 25119), (1260, 22328), (1440, 19537), (1680, 16746), (2016, 13955), (2520, 11164), (2791, 10080), (3360, 8373), (5040, 5582)]