28358225

素因数分解:

$5^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1237}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 40527168

約数和(自身を除く): 12168943

約数列:

[1, 5, 7, 25, 35, 131, 175, 655, 917, 1237, 3275, 4585, 6185, 8659, 22925, 30925, 43295, 162047, 216475, 810235, 1134329, 4051175, 5671645, 28358225]

約数ペア:

[(1, 28358225), (5, 5671645), (7, 4051175), (25, 1134329), (35, 810235), (131, 216475), (175, 162047), (655, 43295), (917, 30925), (1237, 22925), (3275, 8659), (4585, 6185)]