257131872

素因数分解:

$2^5\times 3^2\times {\mathrm{109}}^1\times {\mathrm{8191}}^1$

素因数の和:8316

約数の個数: 72

約数和(自身を含む): 738017280

約数和(自身を除く): 480885408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 109, 144, 218, 288, 327, 436, 654, 872, 981, 1308, 1744, 1962, 2616, 3488, 3924, 5232, 7848, 8191, 10464, 15696, 16382, 24573, 31392, 32764, 49146, 65528, 73719, 98292, 131056, 147438, 196584, 262112, 294876, 393168, 589752, 786336, 892819, 1179504, 1785638, 2359008, 2678457, 3571276, 5356914, 7142552, 8035371, 10713828, 14285104, 16070742, 21427656, 28570208, 32141484, 42855312, 64282968, 85710624, 128565936, 257131872]

約数ペア:

[(1, 257131872), (2, 128565936), (3, 85710624), (4, 64282968), (6, 42855312), (8, 32141484), (9, 28570208), (12, 21427656), (16, 16070742), (18, 14285104), (24, 10713828), (32, 8035371), (36, 7142552), (48, 5356914), (72, 3571276), (96, 2678457), (109, 2359008), (144, 1785638), (218, 1179504), (288, 892819), (327, 786336), (436, 589752), (654, 393168), (872, 294876), (981, 262112), (1308, 196584), (1744, 147438), (1962, 131056), (2616, 98292), (3488, 73719), (3924, 65528), (5232, 49146), (7848, 32764), (8191, 31392), (10464, 24573), (15696, 16382)]