4079120

素因数分解:

$2^4\times 5^1\times {\mathrm{50989}}^1$

素因数の和:51002

約数の個数: 20

約数和(自身を含む): 9484140

約数和(自身を除く): 5405020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 50989, 101978, 203956, 254945, 407912, 509890, 815824, 1019780, 2039560, 4079120]

約数ペア:

[(1, 4079120), (2, 2039560), (4, 1019780), (5, 815824), (8, 509890), (10, 407912), (16, 254945), (20, 203956), (40, 101978), (80, 50989)]