2764776920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1\times {\mathrm{1999}}^1$

素因数の和:2568

約数の個数: 64

約数和(自身を含む): 6324480000

約数和(自身を除く): 3559703080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 487, 568, 710, 974, 1420, 1948, 1999, 2435, 2840, 3896, 3998, 4870, 7996, 9740, 9995, 15992, 19480, 19990, 34577, 39980, 69154, 79960, 138308, 141929, 172885, 276616, 283858, 345770, 567716, 691540, 709645, 973513, 1135432, 1383080, 1419290, 1947026, 2838580, 3894052, 4867565, 5677160, 7788104, 9735130, 19470260, 38940520, 69119423, 138238846, 276477692, 345597115, 552955384, 691194230, 1382388460, 2764776920]

約数ペア:

[(1, 2764776920), (2, 1382388460), (4, 691194230), (5, 552955384), (8, 345597115), (10, 276477692), (20, 138238846), (40, 69119423), (71, 38940520), (142, 19470260), (284, 9735130), (355, 7788104), (487, 5677160), (568, 4867565), (710, 3894052), (974, 2838580), (1420, 1947026), (1948, 1419290), (1999, 1383080), (2435, 1135432), (2840, 973513), (3896, 709645), (3998, 691540), (4870, 567716), (7996, 345770), (9740, 283858), (9995, 276616), (15992, 172885), (19480, 141929), (19990, 138308), (34577, 79960), (39980, 69154)]