66561880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21611}}^1$

素因数の和:21640

約数の個数: 64

約数和(自身を含む): 186727680

約数和(自身を除く): 120165800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 21611, 43222, 86444, 108055, 151277, 172888, 216110, 237721, 302554, 432220, 475442, 605108, 756385, 864440, 950884, 1188605, 1210216, 1512770, 1664047, 1901768, 2377210, 3025540, 3328094, 4754420, 6051080, 6656188, 8320235, 9508840, 13312376, 16640470, 33280940, 66561880]

約数ペア:

[(1, 66561880), (2, 33280940), (4, 16640470), (5, 13312376), (7, 9508840), (8, 8320235), (10, 6656188), (11, 6051080), (14, 4754420), (20, 3328094), (22, 3025540), (28, 2377210), (35, 1901768), (40, 1664047), (44, 1512770), (55, 1210216), (56, 1188605), (70, 950884), (77, 864440), (88, 756385), (110, 605108), (140, 475442), (154, 432220), (220, 302554), (280, 237721), (308, 216110), (385, 172888), (440, 151277), (616, 108055), (770, 86444), (1540, 43222), (3080, 21611)]