208156620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{495611}}^1$

素因数の和:495630

約数の個数: 48

約数和(自身を含む): 666102528

約数和(自身を除く): 457945908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 495611, 991222, 1486833, 1982444, 2478055, 2973666, 3469277, 4956110, 5947332, 6938554, 7434165, 9912220, 10407831, 13877108, 14868330, 17346385, 20815662, 29736660, 34692770, 41631324, 52039155, 69385540, 104078310, 208156620]

約数ペア:

[(1, 208156620), (2, 104078310), (3, 69385540), (4, 52039155), (5, 41631324), (6, 34692770), (7, 29736660), (10, 20815662), (12, 17346385), (14, 14868330), (15, 13877108), (20, 10407831), (21, 9912220), (28, 7434165), (30, 6938554), (35, 5947332), (42, 4956110), (60, 3469277), (70, 2973666), (84, 2478055), (105, 1982444), (140, 1486833), (210, 991222), (420, 495611)]