256543456

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1747}}^1$

素因数の和:2123

約数の個数: 48

約数和(自身を含む): 545774544

約数和(自身を除く): 289231088

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 353, 416, 706, 1412, 1747, 2824, 3494, 4589, 5648, 6988, 9178, 11296, 13976, 18356, 22711, 27952, 36712, 45422, 55904, 73424, 90844, 146848, 181688, 363376, 616691, 726752, 1233382, 2466764, 4933528, 8016983, 9867056, 16033966, 19734112, 32067932, 64135864, 128271728, 256543456]

約数ペア:

[(1, 256543456), (2, 128271728), (4, 64135864), (8, 32067932), (13, 19734112), (16, 16033966), (26, 9867056), (32, 8016983), (52, 4933528), (104, 2466764), (208, 1233382), (353, 726752), (416, 616691), (706, 363376), (1412, 181688), (1747, 146848), (2824, 90844), (3494, 73424), (4589, 55904), (5648, 45422), (6988, 36712), (9178, 27952), (11296, 22711), (13976, 18356)]