28007280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{5557}}^1$

素因数の和:5583

約数の個数: 120

約数和(自身を含む): 107513952

約数和(自身を除く): 79506672

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 5557, 11114, 16671, 22228, 27785, 33342, 38899, 44456, 50013, 55570, 66684, 77798, 83355, 88912, 100026, 111140, 116697, 133368, 155596, 166710, 194495, 200052, 222280, 233394, 250065, 266736, 311192, 333420, 350091, 388990, 400104, 444560, 466788, 500130, 583485, 622384, 666840, 700182, 777980, 800208, 933576, 1000260, 1166970, 1333680, 1400364, 1555960, 1750455, 1867152, 2000520, 2333940, 2800728, 3111920, 3500910, 4001040, 4667880, 5601456, 7001820, 9335760, 14003640, 28007280]

約数ペア:

[(1, 28007280), (2, 14003640), (3, 9335760), (4, 7001820), (5, 5601456), (6, 4667880), (7, 4001040), (8, 3500910), (9, 3111920), (10, 2800728), (12, 2333940), (14, 2000520), (15, 1867152), (16, 1750455), (18, 1555960), (20, 1400364), (21, 1333680), (24, 1166970), (28, 1000260), (30, 933576), (35, 800208), (36, 777980), (40, 700182), (42, 666840), (45, 622384), (48, 583485), (56, 500130), (60, 466788), (63, 444560), (70, 400104), (72, 388990), (80, 350091), (84, 333420), (90, 311192), (105, 266736), (112, 250065), (120, 233394), (126, 222280), (140, 200052), (144, 194495), (168, 166710), (180, 155596), (210, 133368), (240, 116697), (252, 111140), (280, 100026), (315, 88912), (336, 83355), (360, 77798), (420, 66684), (504, 55570), (560, 50013), (630, 44456), (720, 38899), (840, 33342), (1008, 27785), (1260, 22228), (1680, 16671), (2520, 11114), (5040, 5557)]