2009183920

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{2237}}^1$

素因数の和:2462

約数の個数: 80

約数和(自身を含む): 4762105920

約数和(自身を除く): 2752922000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 109, 206, 218, 412, 436, 515, 545, 824, 872, 1030, 1090, 1648, 1744, 2060, 2180, 2237, 4120, 4360, 4474, 8240, 8720, 8948, 11185, 11227, 17896, 22370, 22454, 35792, 44740, 44908, 56135, 89480, 89816, 112270, 178960, 179632, 224540, 230411, 243833, 449080, 460822, 487666, 898160, 921644, 975332, 1152055, 1219165, 1843288, 1950664, 2304110, 2438330, 3686576, 3901328, 4608220, 4876660, 9216440, 9753320, 18432880, 19506640, 25114799, 50229598, 100459196, 125573995, 200918392, 251147990, 401836784, 502295980, 1004591960, 2009183920]

約数ペア:

[(1, 2009183920), (2, 1004591960), (4, 502295980), (5, 401836784), (8, 251147990), (10, 200918392), (16, 125573995), (20, 100459196), (40, 50229598), (80, 25114799), (103, 19506640), (109, 18432880), (206, 9753320), (218, 9216440), (412, 4876660), (436, 4608220), (515, 3901328), (545, 3686576), (824, 2438330), (872, 2304110), (1030, 1950664), (1090, 1843288), (1648, 1219165), (1744, 1152055), (2060, 975332), (2180, 921644), (2237, 898160), (4120, 487666), (4360, 460822), (4474, 449080), (8240, 243833), (8720, 230411), (8948, 224540), (11185, 179632), (11227, 178960), (17896, 112270), (22370, 89816), (22454, 89480), (35792, 56135), (44740, 44908)]