155247860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2053}}^1$

素因数の和:2280

約数の個数: 48

約数和(自身を含む): 345072000

約数和(自身を除く): 189824140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 796, 995, 1990, 2053, 3781, 3980, 4106, 7562, 8212, 10265, 15124, 18905, 20530, 37810, 39007, 41060, 75620, 78014, 156028, 195035, 390070, 408547, 780140, 817094, 1634188, 2042735, 4085470, 7762393, 8170940, 15524786, 31049572, 38811965, 77623930, 155247860]

約数ペア:

[(1, 155247860), (2, 77623930), (4, 38811965), (5, 31049572), (10, 15524786), (19, 8170940), (20, 7762393), (38, 4085470), (76, 2042735), (95, 1634188), (190, 817094), (199, 780140), (380, 408547), (398, 390070), (796, 195035), (995, 156028), (1990, 78014), (2053, 75620), (3781, 41060), (3980, 39007), (4106, 37810), (7562, 20530), (8212, 18905), (10265, 15124)]