256219978

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{8837}}^1$

素因数の和:8974

約数の個数: 32

約数和(自身を含む): 466646400

約数和(自身を除く): 210426422

約数列:

[1, 2, 7, 14, 19, 38, 109, 133, 218, 266, 763, 1526, 2071, 4142, 8837, 14497, 17674, 28994, 61859, 123718, 167903, 335806, 963233, 1175321, 1926466, 2350642, 6742631, 13485262, 18301427, 36602854, 128109989, 256219978]

約数ペア:

[(1, 256219978), (2, 128109989), (7, 36602854), (14, 18301427), (19, 13485262), (38, 6742631), (109, 2350642), (133, 1926466), (218, 1175321), (266, 963233), (763, 335806), (1526, 167903), (2071, 123718), (4142, 61859), (8837, 28994), (14497, 17674)]