28912250

素因数分解:

$2^1\times 5^3\times {\mathrm{109}}^1\times {\mathrm{1061}}^1$

素因数の和:1187

約数の個数: 32

約数和(自身を含む): 54671760

約数和(自身を除く): 25759510

約数列:

[1, 2, 5, 10, 25, 50, 109, 125, 218, 250, 545, 1061, 1090, 2122, 2725, 5305, 5450, 10610, 13625, 26525, 27250, 53050, 115649, 132625, 231298, 265250, 578245, 1156490, 2891225, 5782450, 14456125, 28912250]

約数ペア:

[(1, 28912250), (2, 14456125), (5, 5782450), (10, 2891225), (25, 1156490), (50, 578245), (109, 265250), (125, 231298), (218, 132625), (250, 115649), (545, 53050), (1061, 27250), (1090, 26525), (2122, 13625), (2725, 10610), (5305, 5450)]