31314185

素因数分解:

$5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:107

約数の個数: 48

約数和(自身を含む): 47664000

約数和(自身を除く): 16349815

約数列:

[1, 5, 7, 19, 31, 35, 49, 95, 133, 155, 217, 245, 343, 589, 665, 931, 961, 1085, 1519, 1715, 2945, 4123, 4655, 4805, 6517, 6727, 7595, 10633, 18259, 20615, 28861, 32585, 33635, 47089, 53165, 91295, 127813, 144305, 202027, 235445, 329623, 639065, 894691, 1010135, 1648115, 4473455, 6262837, 31314185]

約数ペア:

[(1, 31314185), (5, 6262837), (7, 4473455), (19, 1648115), (31, 1010135), (35, 894691), (49, 639065), (95, 329623), (133, 235445), (155, 202027), (217, 144305), (245, 127813), (343, 91295), (589, 53165), (665, 47089), (931, 33635), (961, 32585), (1085, 28861), (1519, 20615), (1715, 18259), (2945, 10633), (4123, 7595), (4655, 6727), (4805, 6517)]