72107931

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 122923008

約数和(自身を除く): 50815077

約数列:

[1, 3, 7, 17, 21, 37, 51, 53, 103, 111, 119, 159, 259, 309, 357, 371, 629, 721, 777, 901, 1113, 1751, 1887, 1961, 2163, 2703, 3811, 4403, 5253, 5459, 5883, 6307, 11433, 12257, 13209, 13727, 16377, 18921, 26677, 33337, 36771, 38213, 41181, 64787, 80031, 92803, 100011, 114639, 194361, 201983, 233359, 278409, 453509, 605949, 649621, 700077, 1360527, 1413881, 1948863, 3433711, 4241643, 10301133, 24035977, 72107931]

約数ペア:

[(1, 72107931), (3, 24035977), (7, 10301133), (17, 4241643), (21, 3433711), (37, 1948863), (51, 1413881), (53, 1360527), (103, 700077), (111, 649621), (119, 605949), (159, 453509), (259, 278409), (309, 233359), (357, 201983), (371, 194361), (629, 114639), (721, 100011), (777, 92803), (901, 80031), (1113, 64787), (1751, 41181), (1887, 38213), (1961, 36771), (2163, 33337), (2703, 26677), (3811, 18921), (4403, 16377), (5253, 13727), (5459, 13209), (5883, 12257), (6307, 11433)]