260067560

素因数分解:

$2^3\times 5^1\times {\mathrm{6501689}}^1$

素因数の和:6501700

約数の個数: 16

約数和(自身を含む): 585152100

約数和(自身を除く): 325084540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6501689, 13003378, 26006756, 32508445, 52013512, 65016890, 130033780, 260067560]

約数ペア:

[(1, 260067560), (2, 130033780), (4, 65016890), (5, 52013512), (8, 32508445), (10, 26006756), (20, 13003378), (40, 6501689)]