28574195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1361}}^1$

素因数の和:1415

約数の個数: 32

約数和(自身を含む): 41186880

約数和(自身を除く): 12612685

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 1105, 1235, 1361, 1615, 4199, 6805, 17693, 20995, 23137, 25859, 88465, 115685, 129295, 300781, 336167, 439603, 1503905, 1680835, 2198015, 5714839, 28574195]

約数ペア:

[(1, 28574195), (5, 5714839), (13, 2198015), (17, 1680835), (19, 1503905), (65, 439603), (85, 336167), (95, 300781), (221, 129295), (247, 115685), (323, 88465), (1105, 25859), (1235, 23137), (1361, 20995), (1615, 17693), (4199, 6805)]