28589680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2687}}^1$

素因数の和:2726

約数の個数: 80

約数和(自身を含む): 79994880

約数和(自身を除く): 51405200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 2687, 5320, 5374, 10640, 10748, 13435, 18809, 21496, 26870, 37618, 42992, 51053, 53740, 75236, 94045, 102106, 107480, 150472, 188090, 204212, 214960, 255265, 300944, 357371, 376180, 408424, 510530, 714742, 752360, 816848, 1021060, 1429484, 1504720, 1786855, 2042120, 2858968, 3573710, 4084240, 5717936, 7147420, 14294840, 28589680]

約数ペア:

[(1, 28589680), (2, 14294840), (4, 7147420), (5, 5717936), (7, 4084240), (8, 3573710), (10, 2858968), (14, 2042120), (16, 1786855), (19, 1504720), (20, 1429484), (28, 1021060), (35, 816848), (38, 752360), (40, 714742), (56, 510530), (70, 408424), (76, 376180), (80, 357371), (95, 300944), (112, 255265), (133, 214960), (140, 204212), (152, 188090), (190, 150472), (266, 107480), (280, 102106), (304, 94045), (380, 75236), (532, 53740), (560, 51053), (665, 42992), (760, 37618), (1064, 26870), (1330, 21496), (1520, 18809), (2128, 13435), (2660, 10748), (2687, 10640), (5320, 5374)]