249096680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{889631}}^1$

素因数の和:889649

約数の個数: 32

約数和(自身を含む): 640535040

約数和(自身を除く): 391438360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 889631, 1779262, 3558524, 4448155, 6227417, 7117048, 8896310, 12454834, 17792620, 24909668, 31137085, 35585240, 49819336, 62274170, 124548340, 249096680]

約数ペア:

[(1, 249096680), (2, 124548340), (4, 62274170), (5, 49819336), (7, 35585240), (8, 31137085), (10, 24909668), (14, 17792620), (20, 12454834), (28, 8896310), (35, 7117048), (40, 6227417), (56, 4448155), (70, 3558524), (140, 1779262), (280, 889631)]