28256004

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3617}}^1$

素因数の和:3665

約数の個数: 72

約数和(自身を含む): 84284928

約数和(自身を除く): 56028924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2604, 3617, 3906, 7234, 7812, 10851, 14468, 21702, 25319, 32553, 43404, 50638, 65106, 75957, 101276, 112127, 130212, 151914, 224254, 227871, 303828, 336381, 448508, 455742, 672762, 784889, 911484, 1009143, 1345524, 1569778, 2018286, 2354667, 3139556, 4036572, 4709334, 7064001, 9418668, 14128002, 28256004]

約数ペア:

[(1, 28256004), (2, 14128002), (3, 9418668), (4, 7064001), (6, 4709334), (7, 4036572), (9, 3139556), (12, 2354667), (14, 2018286), (18, 1569778), (21, 1345524), (28, 1009143), (31, 911484), (36, 784889), (42, 672762), (62, 455742), (63, 448508), (84, 336381), (93, 303828), (124, 227871), (126, 224254), (186, 151914), (217, 130212), (252, 112127), (279, 101276), (372, 75957), (434, 65106), (558, 50638), (651, 43404), (868, 32553), (1116, 25319), (1302, 21702), (1953, 14468), (2604, 10851), (3617, 7812), (3906, 7234)]