30875247

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 54918864

約数和(自身を除く): 24043617

約数列:

[1, 3, 9, 13, 17, 19, 39, 43, 51, 57, 117, 129, 153, 171, 221, 247, 323, 361, 387, 559, 663, 731, 741, 817, 969, 1083, 1677, 1989, 2193, 2223, 2451, 2907, 3249, 4199, 4693, 5031, 6137, 6579, 7353, 9503, 10621, 12597, 13889, 14079, 15523, 18411, 28509, 31863, 37791, 41667, 42237, 46569, 55233, 79781, 85527, 95589, 125001, 139707, 180557, 201799, 239343, 263891, 541671, 605397, 718029, 791673, 1625013, 1816191, 2375019, 3430583, 10291749, 30875247]

約数ペア:

[(1, 30875247), (3, 10291749), (9, 3430583), (13, 2375019), (17, 1816191), (19, 1625013), (39, 791673), (43, 718029), (51, 605397), (57, 541671), (117, 263891), (129, 239343), (153, 201799), (171, 180557), (221, 139707), (247, 125001), (323, 95589), (361, 85527), (387, 79781), (559, 55233), (663, 46569), (731, 42237), (741, 41667), (817, 37791), (969, 31863), (1083, 28509), (1677, 18411), (1989, 15523), (2193, 14079), (2223, 13889), (2451, 12597), (2907, 10621), (3249, 9503), (4199, 7353), (4693, 6579), (5031, 6137)]