211380560

素因数分解:

$2^4\times 5^1\times {\mathrm{2642257}}^1$

素因数の和:2642270

約数の個数: 20

約数和(自身を含む): 491459988

約数和(自身を除く): 280079428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2642257, 5284514, 10569028, 13211285, 21138056, 26422570, 42276112, 52845140, 105690280, 211380560]

約数ペア:

[(1, 211380560), (2, 105690280), (4, 52845140), (5, 42276112), (8, 26422570), (10, 21138056), (16, 13211285), (20, 10569028), (40, 5284514), (80, 2642257)]