20675665

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 25502400

約数和(自身を除く): 4826735

約数列:

[1, 5, 59, 109, 295, 545, 643, 3215, 6431, 32155, 37937, 70087, 189685, 350435, 4135133, 20675665]

約数ペア:

[(1, 20675665), (5, 4135133), (59, 350435), (109, 189685), (295, 70087), (545, 37937), (643, 32155), (3215, 6431)]