20168075

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 26041488

約数和(自身を除く): 5873413

約数列:

[1, 5, 25, 43, 73, 215, 257, 365, 1075, 1285, 1825, 3139, 6425, 11051, 15695, 18761, 55255, 78475, 93805, 276275, 469025, 806723, 4033615, 20168075]

約数ペア:

[(1, 20168075), (5, 4033615), (25, 806723), (43, 469025), (73, 276275), (215, 93805), (257, 78475), (365, 55255), (1075, 18761), (1285, 15695), (1825, 11051), (3139, 6425)]