212075185

素因数分解:

$5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{3989}}^1$

素因数の和:4046

約数の個数: 32

約数和(自身を含む): 306432000

約数和(自身を除く): 94356815

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 343, 1085, 1519, 1715, 3989, 7595, 10633, 19945, 27923, 53165, 123659, 139615, 195461, 618295, 865613, 977305, 1368227, 4328065, 6059291, 6841135, 30296455, 42415037, 212075185]

約数ペア:

[(1, 212075185), (5, 42415037), (7, 30296455), (31, 6841135), (35, 6059291), (49, 4328065), (155, 1368227), (217, 977305), (245, 865613), (343, 618295), (1085, 195461), (1519, 139615), (1715, 123659), (3989, 53165), (7595, 27923), (10633, 19945)]