20907560

素因数分解:

$2^3\times 5^1\times {\mathrm{522689}}^1$

素因数の和:522700

約数の個数: 16

約数和(自身を含む): 47042100

約数和(自身を除く): 26134540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 522689, 1045378, 2090756, 2613445, 4181512, 5226890, 10453780, 20907560]

約数ペア:

[(1, 20907560), (2, 10453780), (4, 5226890), (5, 4181512), (8, 2613445), (10, 2090756), (20, 1045378), (40, 522689)]