28639750

素因数分解:

$2^1\times 5^3\times {\mathrm{109}}^1\times {\mathrm{1051}}^1$

素因数の和:1177

約数の個数: 32

約数和(自身を含む): 54156960

約数和(自身を除く): 25517210

約数列:

[1, 2, 5, 10, 25, 50, 109, 125, 218, 250, 545, 1051, 1090, 2102, 2725, 5255, 5450, 10510, 13625, 26275, 27250, 52550, 114559, 131375, 229118, 262750, 572795, 1145590, 2863975, 5727950, 14319875, 28639750]

約数ペア:

[(1, 28639750), (2, 14319875), (5, 5727950), (10, 2863975), (25, 1145590), (50, 572795), (109, 262750), (125, 229118), (218, 131375), (250, 114559), (545, 52550), (1051, 27250), (1090, 26275), (2102, 13625), (2725, 10510), (5255, 5450)]