20703760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3361}}^1$

素因数の和:3392

約数の個数: 80

約数和(自身を含む): 60031872

約数和(自身を除く): 39328112

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 3361, 6160, 6722, 13444, 16805, 23527, 26888, 33610, 36971, 47054, 53776, 67220, 73942, 94108, 117635, 134440, 147884, 184855, 188216, 235270, 258797, 268880, 295768, 369710, 376432, 470540, 517594, 591536, 739420, 941080, 1035188, 1293985, 1478840, 1882160, 2070376, 2587970, 2957680, 4140752, 5175940, 10351880, 20703760]

約数ペア:

[(1, 20703760), (2, 10351880), (4, 5175940), (5, 4140752), (7, 2957680), (8, 2587970), (10, 2070376), (11, 1882160), (14, 1478840), (16, 1293985), (20, 1035188), (22, 941080), (28, 739420), (35, 591536), (40, 517594), (44, 470540), (55, 376432), (56, 369710), (70, 295768), (77, 268880), (80, 258797), (88, 235270), (110, 188216), (112, 184855), (140, 147884), (154, 134440), (176, 117635), (220, 94108), (280, 73942), (308, 67220), (385, 53776), (440, 47054), (560, 36971), (616, 33610), (770, 26888), (880, 23527), (1232, 16805), (1540, 13444), (3080, 6722), (3361, 6160)]