68268940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{1009}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 152712000

約数和(自身を除く): 84443060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 398, 796, 995, 1009, 1990, 2018, 3383, 3980, 4036, 5045, 6766, 10090, 13532, 16915, 17153, 20180, 33830, 34306, 67660, 68612, 85765, 171530, 200791, 343060, 401582, 803164, 1003955, 2007910, 3413447, 4015820, 6826894, 13653788, 17067235, 34134470, 68268940]

約数ペア:

[(1, 68268940), (2, 34134470), (4, 17067235), (5, 13653788), (10, 6826894), (17, 4015820), (20, 3413447), (34, 2007910), (68, 1003955), (85, 803164), (170, 401582), (199, 343060), (340, 200791), (398, 171530), (796, 85765), (995, 68612), (1009, 67660), (1990, 34306), (2018, 33830), (3383, 20180), (3980, 17153), (4036, 16915), (5045, 13532), (6766, 10090)]