209547560

素因数分解:

$2^3\times 5^1\times {\mathrm{5238689}}^1$

素因数の和:5238700

約数の個数: 16

約数和(自身を含む): 471482100

約数和(自身を除く): 261934540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5238689, 10477378, 20954756, 26193445, 41909512, 52386890, 104773780, 209547560]

約数ペア:

[(1, 209547560), (2, 104773780), (4, 52386890), (5, 41909512), (8, 26193445), (10, 20954756), (20, 10477378), (40, 5238689)]