19237960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{541}}^1$

素因数の和:686

約数の個数: 64

約数和(自身を含む): 49950720

約数和(自身を除く): 30712760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 508, 541, 635, 889, 1016, 1082, 1270, 1778, 2164, 2540, 2705, 3556, 3787, 4328, 4445, 5080, 5410, 7112, 7574, 8890, 10820, 15148, 17780, 18935, 21640, 30296, 35560, 37870, 68707, 75740, 137414, 151480, 274828, 343535, 480949, 549656, 687070, 961898, 1374140, 1923796, 2404745, 2748280, 3847592, 4809490, 9618980, 19237960]

約数ペア:

[(1, 19237960), (2, 9618980), (4, 4809490), (5, 3847592), (7, 2748280), (8, 2404745), (10, 1923796), (14, 1374140), (20, 961898), (28, 687070), (35, 549656), (40, 480949), (56, 343535), (70, 274828), (127, 151480), (140, 137414), (254, 75740), (280, 68707), (508, 37870), (541, 35560), (635, 30296), (889, 21640), (1016, 18935), (1082, 17780), (1270, 15148), (1778, 10820), (2164, 8890), (2540, 7574), (2705, 7112), (3556, 5410), (3787, 5080), (4328, 4445)]