2009975680

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{66821}}^1$

素因数の和:66887

約数の個数: 64

約数和(自身を含む): 4907407680

約数和(自身を除く): 2897432000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 320, 376, 470, 640, 752, 940, 1504, 1880, 3008, 3760, 6016, 7520, 15040, 30080, 66821, 133642, 267284, 334105, 534568, 668210, 1069136, 1336420, 2138272, 2672840, 3140587, 4276544, 5345680, 6281174, 8553088, 10691360, 12562348, 15702935, 21382720, 25124696, 31405870, 42765440, 50249392, 62811740, 100498784, 125623480, 200997568, 251246960, 401995136, 502493920, 1004987840, 2009975680]

約数ペア:

[(1, 2009975680), (2, 1004987840), (4, 502493920), (5, 401995136), (8, 251246960), (10, 200997568), (16, 125623480), (20, 100498784), (32, 62811740), (40, 50249392), (47, 42765440), (64, 31405870), (80, 25124696), (94, 21382720), (128, 15702935), (160, 12562348), (188, 10691360), (235, 8553088), (320, 6281174), (376, 5345680), (470, 4276544), (640, 3140587), (752, 2672840), (940, 2138272), (1504, 1336420), (1880, 1069136), (3008, 668210), (3760, 534568), (6016, 334105), (7520, 267284), (15040, 133642), (30080, 66821)]