1793145220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1\times {\mathrm{2287}}^1$

素因数の和:2692

約数の個数: 48

約数和(自身を含む): 3805401600

約数和(自身を除く): 2012256380

約数列:

[1, 2, 4, 5, 10, 20, 197, 199, 394, 398, 788, 796, 985, 995, 1970, 1990, 2287, 3940, 3980, 4574, 9148, 11435, 22870, 39203, 45740, 78406, 156812, 196015, 392030, 450539, 455113, 784060, 901078, 910226, 1802156, 1820452, 2252695, 2275565, 4505390, 4551130, 9010780, 9102260, 89657261, 179314522, 358629044, 448286305, 896572610, 1793145220]

約数ペア:

[(1, 1793145220), (2, 896572610), (4, 448286305), (5, 358629044), (10, 179314522), (20, 89657261), (197, 9102260), (199, 9010780), (394, 4551130), (398, 4505390), (788, 2275565), (796, 2252695), (985, 1820452), (995, 1802156), (1970, 910226), (1990, 901078), (2287, 784060), (3940, 455113), (3980, 450539), (4574, 392030), (9148, 196015), (11435, 156812), (22870, 78406), (39203, 45740)]