81343864

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{859}}^1$

素因数の和:980

約数の個数: 64

約数和(自身を含む): 185760000

約数和(自身を除く): 104416136

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 89, 133, 152, 178, 266, 356, 532, 623, 712, 859, 1064, 1246, 1691, 1718, 2492, 3382, 3436, 4984, 6013, 6764, 6872, 11837, 12026, 13528, 16321, 23674, 24052, 32642, 47348, 48104, 65284, 76451, 94696, 114247, 130568, 152902, 228494, 305804, 456988, 535157, 611608, 913976, 1070314, 1452569, 2140628, 2905138, 4281256, 5810276, 10167983, 11620552, 20335966, 40671932, 81343864]

約数ペア:

[(1, 81343864), (2, 40671932), (4, 20335966), (7, 11620552), (8, 10167983), (14, 5810276), (19, 4281256), (28, 2905138), (38, 2140628), (56, 1452569), (76, 1070314), (89, 913976), (133, 611608), (152, 535157), (178, 456988), (266, 305804), (356, 228494), (532, 152902), (623, 130568), (712, 114247), (859, 94696), (1064, 76451), (1246, 65284), (1691, 48104), (1718, 47348), (2492, 32642), (3382, 24052), (3436, 23674), (4984, 16321), (6013, 13528), (6764, 12026), (6872, 11837)]