28317775

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 36716400

約数和(自身を除く): 8398625

約数列:

[1, 5, 25, 29, 139, 145, 281, 695, 725, 1405, 3475, 4031, 7025, 8149, 20155, 39059, 40745, 100775, 195295, 203725, 976475, 1132711, 5663555, 28317775]

約数ペア:

[(1, 28317775), (5, 5663555), (25, 1132711), (29, 976475), (139, 203725), (145, 195295), (281, 100775), (695, 40745), (725, 39059), (1405, 20155), (3475, 8149), (4031, 7025)]