28086520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{829}}^1$

素因数の和:869

約数の個数: 96

約数和(自身を含む): 79480800

約数和(自身を除く): 51394280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 121, 140, 154, 220, 242, 280, 308, 385, 440, 484, 605, 616, 770, 829, 847, 968, 1210, 1540, 1658, 1694, 2420, 3080, 3316, 3388, 4145, 4235, 4840, 5803, 6632, 6776, 8290, 8470, 9119, 11606, 16580, 16940, 18238, 23212, 29015, 33160, 33880, 36476, 45595, 46424, 58030, 63833, 72952, 91190, 100309, 116060, 127666, 182380, 200618, 232120, 255332, 319165, 364760, 401236, 501545, 510664, 638330, 702163, 802472, 1003090, 1276660, 1404326, 2006180, 2553320, 2808652, 3510815, 4012360, 5617304, 7021630, 14043260, 28086520]

約数ペア:

[(1, 28086520), (2, 14043260), (4, 7021630), (5, 5617304), (7, 4012360), (8, 3510815), (10, 2808652), (11, 2553320), (14, 2006180), (20, 1404326), (22, 1276660), (28, 1003090), (35, 802472), (40, 702163), (44, 638330), (55, 510664), (56, 501545), (70, 401236), (77, 364760), (88, 319165), (110, 255332), (121, 232120), (140, 200618), (154, 182380), (220, 127666), (242, 116060), (280, 100309), (308, 91190), (385, 72952), (440, 63833), (484, 58030), (605, 46424), (616, 45595), (770, 36476), (829, 33880), (847, 33160), (968, 29015), (1210, 23212), (1540, 18238), (1658, 16940), (1694, 16580), (2420, 11606), (3080, 9119), (3316, 8470), (3388, 8290), (4145, 6776), (4235, 6632), (4840, 5803)]