774665180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{20903}}^1$

素因数の和:21038

約数の個数: 48

約数和(自身を含む): 1738376640

約数和(自身を除く): 963711460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 1090, 1853, 2180, 3706, 7412, 9265, 18530, 20903, 37060, 41806, 83612, 104515, 209030, 355351, 418060, 710702, 1421404, 1776755, 2278427, 3553510, 4556854, 7107020, 9113708, 11392135, 22784270, 38733259, 45568540, 77466518, 154933036, 193666295, 387332590, 774665180]

約数ペア:

[(1, 774665180), (2, 387332590), (4, 193666295), (5, 154933036), (10, 77466518), (17, 45568540), (20, 38733259), (34, 22784270), (68, 11392135), (85, 9113708), (109, 7107020), (170, 4556854), (218, 3553510), (340, 2278427), (436, 1776755), (545, 1421404), (1090, 710702), (1853, 418060), (2180, 355351), (3706, 209030), (7412, 104515), (9265, 83612), (18530, 41806), (20903, 37060)]