639105656

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{1231}}^1$

素因数の和:1444

約数の個数: 64

約数和(自身を含む): 1400340480

約数和(自身を除く): 761234824

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 127, 146, 254, 292, 508, 511, 584, 889, 1016, 1022, 1231, 1778, 2044, 2462, 3556, 4088, 4924, 7112, 8617, 9271, 9848, 17234, 18542, 34468, 37084, 64897, 68936, 74168, 89863, 129794, 156337, 179726, 259588, 312674, 359452, 519176, 625348, 629041, 718904, 1094359, 1250696, 1258082, 2188718, 2516164, 4377436, 5032328, 8754872, 11412601, 22825202, 45650404, 79888207, 91300808, 159776414, 319552828, 639105656]

約数ペア:

[(1, 639105656), (2, 319552828), (4, 159776414), (7, 91300808), (8, 79888207), (14, 45650404), (28, 22825202), (56, 11412601), (73, 8754872), (127, 5032328), (146, 4377436), (254, 2516164), (292, 2188718), (508, 1258082), (511, 1250696), (584, 1094359), (889, 718904), (1016, 629041), (1022, 625348), (1231, 519176), (1778, 359452), (2044, 312674), (2462, 259588), (3556, 179726), (4088, 156337), (4924, 129794), (7112, 89863), (8617, 74168), (9271, 68936), (9848, 64897), (17234, 37084), (18542, 34468)]