1280210640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{5334211}}^1$

素因数の和:5334227

約数の個数: 40

約数和(自身を含む): 3968653728

約数和(自身を除く): 2688443088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 5334211, 10668422, 16002633, 21336844, 26671055, 32005266, 42673688, 53342110, 64010532, 80013165, 85347376, 106684220, 128021064, 160026330, 213368440, 256042128, 320052660, 426736880, 640105320, 1280210640]

約数ペア:

[(1, 1280210640), (2, 640105320), (3, 426736880), (4, 320052660), (5, 256042128), (6, 213368440), (8, 160026330), (10, 128021064), (12, 106684220), (15, 85347376), (16, 80013165), (20, 64010532), (24, 53342110), (30, 42673688), (40, 32005266), (48, 26671055), (60, 21336844), (80, 16002633), (120, 10668422), (240, 5334211)]