28974925

素因数分解:

$5^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 43648000

約数和(自身を除く): 14673075

約数列:

[1, 5, 7, 25, 31, 35, 49, 109, 155, 175, 217, 245, 343, 545, 763, 775, 1085, 1225, 1519, 1715, 2725, 3379, 3815, 5341, 5425, 7595, 8575, 10633, 16895, 19075, 23653, 26705, 37387, 37975, 53165, 84475, 118265, 133525, 165571, 186935, 265825, 591325, 827855, 934675, 1158997, 4139275, 5794985, 28974925]

約数ペア:

[(1, 28974925), (5, 5794985), (7, 4139275), (25, 1158997), (31, 934675), (35, 827855), (49, 591325), (109, 265825), (155, 186935), (175, 165571), (217, 133525), (245, 118265), (343, 84475), (545, 53165), (763, 37975), (775, 37387), (1085, 26705), (1225, 23653), (1519, 19075), (1715, 16895), (2725, 10633), (3379, 8575), (3815, 7595), (5341, 5425)]