20173769240

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2560123}}^1$

素因数の和:2560331

約数の個数: 32

約数和(自身を含む): 45621409680

約数和(自身を除く): 25447640440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 2560123, 5120246, 10240492, 12800615, 20480984, 25601230, 51202460, 102404920, 504344231, 1008688462, 2017376924, 2521721155, 4034753848, 5043442310, 10086884620, 20173769240]

約数ペア:

[(1, 20173769240), (2, 10086884620), (4, 5043442310), (5, 4034753848), (8, 2521721155), (10, 2017376924), (20, 1008688462), (40, 504344231), (197, 102404920), (394, 51202460), (788, 25601230), (985, 20480984), (1576, 12800615), (1970, 10240492), (3940, 5120246), (7880, 2560123)]