20204075

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{347}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 26797392

約数和(自身を除く): 6593317

約数列:

[1, 5, 17, 25, 85, 137, 347, 425, 685, 1735, 2329, 3425, 5899, 8675, 11645, 29495, 47539, 58225, 147475, 237695, 808163, 1188475, 4040815, 20204075]

約数ペア:

[(1, 20204075), (5, 4040815), (17, 1188475), (25, 808163), (85, 237695), (137, 147475), (347, 58225), (425, 47539), (685, 29495), (1735, 11645), (2329, 8675), (3425, 5899)]