28684.000000

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^2$

素因数の和:81

約数の個数: 54

約数和(自身を含む): 2085174

約数和(自身を除く): 1260994

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 841, 980, 1015, 1421, 1682, 2030, 2842, 3364, 4060, 4205, 5684, 5887, 7105, 8410, 11774, 14210, 16820, 23548, 28420, 29435, 41209, 58870, 82418, 117740, 164836, 206045, 412090, 824180]

約数ペア:

[(1, 824180), (2, 412090), (4, 206045), (5, 164836), (7, 117740), (10, 82418), (14, 58870), (20, 41209), (28, 29435), (29, 28420), (35, 23548), (49, 16820), (58, 14210), (70, 11774), (98, 8410), (116, 7105), (140, 5887), (145, 5684), (196, 4205), (203, 4060), (245, 3364), (290, 2842), (406, 2030), (490, 1682), (580, 1421), (812, 1015), (841, 980)]