28667000

素因数分解:

$2^3\times 5^3\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 67953600

約数和(自身を除く): 39286600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 125, 200, 218, 250, 263, 436, 500, 526, 545, 872, 1000, 1052, 1090, 1315, 2104, 2180, 2630, 2725, 4360, 5260, 5450, 6575, 10520, 10900, 13150, 13625, 21800, 26300, 27250, 28667, 32875, 52600, 54500, 57334, 65750, 109000, 114668, 131500, 143335, 229336, 263000, 286670, 573340, 716675, 1146680, 1433350, 2866700, 3583375, 5733400, 7166750, 14333500, 28667000]

約数ペア:

[(1, 28667000), (2, 14333500), (4, 7166750), (5, 5733400), (8, 3583375), (10, 2866700), (20, 1433350), (25, 1146680), (40, 716675), (50, 573340), (100, 286670), (109, 263000), (125, 229336), (200, 143335), (218, 131500), (250, 114668), (263, 109000), (436, 65750), (500, 57334), (526, 54500), (545, 52600), (872, 32875), (1000, 28667), (1052, 27250), (1090, 26300), (1315, 21800), (2104, 13625), (2180, 13150), (2630, 10900), (2725, 10520), (4360, 6575), (5260, 5450)]