28020075

素因数分解:

$3^1\times 5^2\times {\mathrm{547}}^1\times {\mathrm{683}}^1$

素因数の和:1243

約数の個数: 24

約数和(自身を含む): 46479168

約数和(自身を除く): 18459093

約数列:

[1, 3, 5, 15, 25, 75, 547, 683, 1641, 2049, 2735, 3415, 8205, 10245, 13675, 17075, 41025, 51225, 373601, 1120803, 1868005, 5604015, 9340025, 28020075]

約数ペア:

[(1, 28020075), (3, 9340025), (5, 5604015), (15, 1868005), (25, 1120803), (75, 373601), (547, 51225), (683, 41025), (1641, 17075), (2049, 13675), (2735, 10245), (3415, 8205)]