16656560

素因数分解:

$2^4\times 5^1\times {\mathrm{208207}}^1$

素因数の和:208220

約数の個数: 20

約数和(自身を含む): 38726688

約数和(自身を除く): 22070128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 208207, 416414, 832828, 1041035, 1665656, 2082070, 3331312, 4164140, 8328280, 16656560]

約数ペア:

[(1, 16656560), (2, 8328280), (4, 4164140), (5, 3331312), (8, 2082070), (10, 1665656), (16, 1041035), (20, 832828), (40, 416414), (80, 208207)]