256698060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{21499}}^1$

素因数の和:21710

約数の個数: 48

約数和(自身を含む): 722400000

約数和(自身を除く): 465701940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 199, 398, 597, 796, 995, 1194, 1990, 2388, 2985, 3980, 5970, 11940, 21499, 42998, 64497, 85996, 107495, 128994, 214990, 257988, 322485, 429980, 644970, 1289940, 4278301, 8556602, 12834903, 17113204, 21391505, 25669806, 42783010, 51339612, 64174515, 85566020, 128349030, 256698060]

約数ペア:

[(1, 256698060), (2, 128349030), (3, 85566020), (4, 64174515), (5, 51339612), (6, 42783010), (10, 25669806), (12, 21391505), (15, 17113204), (20, 12834903), (30, 8556602), (60, 4278301), (199, 1289940), (398, 644970), (597, 429980), (796, 322485), (995, 257988), (1194, 214990), (1990, 128994), (2388, 107495), (2985, 85996), (3980, 64497), (5970, 42998), (11940, 21499)]