28801325

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5309}}^1$

素因数の和:5357

約数の個数: 24

約数和(自身を含む): 42140160

約数和(自身を除く): 13338835

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 217, 775, 1085, 5309, 5425, 26545, 37163, 132725, 164579, 185815, 822895, 929075, 1152053, 4114475, 5760265, 28801325]

約数ペア:

[(1, 28801325), (5, 5760265), (7, 4114475), (25, 1152053), (31, 929075), (35, 822895), (155, 185815), (175, 164579), (217, 132725), (775, 37163), (1085, 26545), (5309, 5425)]