204539120

素因数分解:

$2^4\times 5^1\times {\mathrm{2556739}}^1$

素因数の和:2556752

約数の個数: 20

約数和(自身を含む): 475553640

約数和(自身を除く): 271014520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2556739, 5113478, 10226956, 12783695, 20453912, 25567390, 40907824, 51134780, 102269560, 204539120]

約数ペア:

[(1, 204539120), (2, 102269560), (4, 51134780), (5, 40907824), (8, 25567390), (10, 20453912), (16, 12783695), (20, 10226956), (40, 5113478), (80, 2556739)]