20694520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6719}}^1$

素因数の和:6748

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 37366280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6719, 13438, 26876, 33595, 47033, 53752, 67190, 73909, 94066, 134380, 147818, 188132, 235165, 268760, 295636, 369545, 376264, 470330, 517363, 591272, 739090, 940660, 1034726, 1478180, 1881320, 2069452, 2586815, 2956360, 4138904, 5173630, 10347260, 20694520]

約数ペア:

[(1, 20694520), (2, 10347260), (4, 5173630), (5, 4138904), (7, 2956360), (8, 2586815), (10, 2069452), (11, 1881320), (14, 1478180), (20, 1034726), (22, 940660), (28, 739090), (35, 591272), (40, 517363), (44, 470330), (55, 376264), (56, 369545), (70, 295636), (77, 268760), (88, 235165), (110, 188132), (140, 147818), (154, 134380), (220, 94066), (280, 73909), (308, 67190), (385, 53752), (440, 47033), (616, 33595), (770, 26876), (1540, 13438), (3080, 6719)]