27989120

素因数分解:

$2^7\times 5^1\times {\mathrm{101}}^1\times {\mathrm{433}}^1$

素因数の和:553

約数の個数: 64

約数和(自身を含む): 67730040

約数和(自身を除く): 39740920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 320, 404, 433, 505, 640, 808, 866, 1010, 1616, 1732, 2020, 2165, 3232, 3464, 4040, 4330, 6464, 6928, 8080, 8660, 12928, 13856, 16160, 17320, 27712, 32320, 34640, 43733, 55424, 64640, 69280, 87466, 138560, 174932, 218665, 277120, 349864, 437330, 699728, 874660, 1399456, 1749320, 2798912, 3498640, 5597824, 6997280, 13994560, 27989120]

約数ペア:

[(1, 27989120), (2, 13994560), (4, 6997280), (5, 5597824), (8, 3498640), (10, 2798912), (16, 1749320), (20, 1399456), (32, 874660), (40, 699728), (64, 437330), (80, 349864), (101, 277120), (128, 218665), (160, 174932), (202, 138560), (320, 87466), (404, 69280), (433, 64640), (505, 55424), (640, 43733), (808, 34640), (866, 32320), (1010, 27712), (1616, 17320), (1732, 16160), (2020, 13856), (2165, 12928), (3232, 8660), (3464, 8080), (4040, 6928), (4330, 6464)]