28512225

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:487

約数の個数: 72

約数和(自身を含む): 59863232

約数和(自身を除く): 31351007

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 43, 45, 63, 75, 105, 129, 175, 215, 225, 301, 315, 387, 421, 525, 645, 903, 1075, 1263, 1505, 1575, 1935, 2105, 2709, 2947, 3225, 3789, 4515, 6315, 7525, 8841, 9675, 10525, 13545, 14735, 18103, 18945, 22575, 26523, 31575, 44205, 54309, 67725, 73675, 90515, 94725, 126721, 132615, 162927, 221025, 271545, 380163, 452575, 633605, 663075, 814635, 1140489, 1357725, 1900815, 3168025, 4073175, 5702445, 9504075, 28512225]

約数ペア:

[(1, 28512225), (3, 9504075), (5, 5702445), (7, 4073175), (9, 3168025), (15, 1900815), (21, 1357725), (25, 1140489), (35, 814635), (43, 663075), (45, 633605), (63, 452575), (75, 380163), (105, 271545), (129, 221025), (175, 162927), (215, 132615), (225, 126721), (301, 94725), (315, 90515), (387, 73675), (421, 67725), (525, 54309), (645, 44205), (903, 31575), (1075, 26523), (1263, 22575), (1505, 18945), (1575, 18103), (1935, 14735), (2105, 13545), (2709, 10525), (2947, 9675), (3225, 8841), (3789, 7525), (4515, 6315)]