239915880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{666433}}^1$

素因数の和:666450

約数の個数: 48

約数和(自身を含む): 779727780

約数和(自身を除く): 539811900

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 666433, 1332866, 1999299, 2665732, 3332165, 3998598, 5331464, 5997897, 6664330, 7997196, 9996495, 11995794, 13328660, 15994392, 19992990, 23991588, 26657320, 29989485, 39985980, 47983176, 59978970, 79971960, 119957940, 239915880]

約数ペア:

[(1, 239915880), (2, 119957940), (3, 79971960), (4, 59978970), (5, 47983176), (6, 39985980), (8, 29989485), (9, 26657320), (10, 23991588), (12, 19992990), (15, 15994392), (18, 13328660), (20, 11995794), (24, 9996495), (30, 7997196), (36, 6664330), (40, 5997897), (45, 5331464), (60, 3998598), (72, 3332165), (90, 2665732), (120, 1999299), (180, 1332866), (360, 666433)]