257777996

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{1021}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 527450112

約数和(自身を除く): 269672116

約数列:

[1, 2, 4, 7, 14, 28, 71, 127, 142, 254, 284, 497, 508, 889, 994, 1021, 1778, 1988, 2042, 3556, 4084, 7147, 9017, 14294, 18034, 28588, 36068, 63119, 72491, 126238, 129667, 144982, 252476, 259334, 289964, 507437, 518668, 907669, 1014874, 1815338, 2029748, 3630676, 9206357, 18412714, 36825428, 64444499, 128888998, 257777996]

約数ペア:

[(1, 257777996), (2, 128888998), (4, 64444499), (7, 36825428), (14, 18412714), (28, 9206357), (71, 3630676), (127, 2029748), (142, 1815338), (254, 1014874), (284, 907669), (497, 518668), (508, 507437), (889, 289964), (994, 259334), (1021, 252476), (1778, 144982), (1988, 129667), (2042, 126238), (3556, 72491), (4084, 63119), (7147, 36068), (9017, 28588), (14294, 18034)]