8584672940

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1\times {\mathrm{10949}}^1$

素因数の和:11354

約数の個数: 48

約数和(自身を含む): 18212040000

約数和(自身を除く): 9627367060

約数列:

[1, 2, 4, 5, 10, 20, 197, 199, 394, 398, 788, 796, 985, 995, 1970, 1990, 3940, 3980, 10949, 21898, 39203, 43796, 54745, 78406, 109490, 156812, 196015, 218980, 392030, 784060, 2156953, 2178851, 4313906, 4357702, 8627812, 8715404, 10784765, 10894255, 21569530, 21788510, 43139060, 43577020, 429233647, 858467294, 1716934588, 2146168235, 4292336470, 8584672940]

約数ペア:

[(1, 8584672940), (2, 4292336470), (4, 2146168235), (5, 1716934588), (10, 858467294), (20, 429233647), (197, 43577020), (199, 43139060), (394, 21788510), (398, 21569530), (788, 10894255), (796, 10784765), (985, 8715404), (995, 8627812), (1970, 4357702), (1990, 4313906), (3940, 2178851), (3980, 2156953), (10949, 784060), (21898, 392030), (39203, 218980), (43796, 196015), (54745, 156812), (78406, 109490)]