28212225

素因数分解:

$3^1\times 5^2\times {\mathrm{389}}^1\times {\mathrm{967}}^1$

素因数の和:1369

約数の個数: 24

約数和(自身を含む): 46812480

約数和(自身を除く): 18600255

約数列:

[1, 3, 5, 15, 25, 75, 389, 967, 1167, 1945, 2901, 4835, 5835, 9725, 14505, 24175, 29175, 72525, 376163, 1128489, 1880815, 5642445, 9404075, 28212225]

約数ペア:

[(1, 28212225), (3, 9404075), (5, 5642445), (15, 1880815), (25, 1128489), (75, 376163), (389, 72525), (967, 29175), (1167, 24175), (1945, 14505), (2901, 9725), (4835, 5835)]