257810254

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{479}}^1$

素因数の和:784

約数の個数: 32

約数和(自身を含む): 423198720

約数和(自身を除く): 165388466

約数列:

[1, 2, 13, 26, 127, 163, 254, 326, 479, 958, 1651, 2119, 3302, 4238, 6227, 12454, 20701, 41402, 60833, 78077, 121666, 156154, 269113, 538226, 790829, 1015001, 1581658, 2030002, 9915779, 19831558, 128905127, 257810254]

約数ペア:

[(1, 257810254), (2, 128905127), (13, 19831558), (26, 9915779), (127, 2030002), (163, 1581658), (254, 1015001), (326, 790829), (479, 538226), (958, 269113), (1651, 156154), (2119, 121666), (3302, 78077), (4238, 60833), (6227, 41402), (12454, 20701)]