81586764

素因数分解:

$2^2\times 3^6\times 7^2\times {\mathrm{571}}^1$

素因数の和:607

約数の個数: 126

約数和(自身を含む): 249453204

約数和(自身を除く): 167866440

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 84, 98, 108, 126, 147, 162, 189, 196, 243, 252, 294, 324, 378, 441, 486, 567, 571, 588, 729, 756, 882, 972, 1134, 1142, 1323, 1458, 1701, 1713, 1764, 2268, 2284, 2646, 2916, 3402, 3426, 3969, 3997, 5103, 5139, 5292, 6804, 6852, 7938, 7994, 10206, 10278, 11907, 11991, 15417, 15876, 15988, 20412, 20556, 23814, 23982, 27979, 30834, 35721, 35973, 46251, 47628, 47964, 55958, 61668, 71442, 71946, 83937, 92502, 107919, 111916, 138753, 142884, 143892, 167874, 185004, 215838, 251811, 277506, 323757, 335748, 416259, 431676, 503622, 555012, 647514, 755433, 832518, 971271, 1007244, 1295028, 1510866, 1665036, 1942542, 2266299, 2913813, 3021732, 3885084, 4532598, 5827626, 6798897, 9065196, 11655252, 13597794, 20396691, 27195588, 40793382, 81586764]

約数ペア:

[(1, 81586764), (2, 40793382), (3, 27195588), (4, 20396691), (6, 13597794), (7, 11655252), (9, 9065196), (12, 6798897), (14, 5827626), (18, 4532598), (21, 3885084), (27, 3021732), (28, 2913813), (36, 2266299), (42, 1942542), (49, 1665036), (54, 1510866), (63, 1295028), (81, 1007244), (84, 971271), (98, 832518), (108, 755433), (126, 647514), (147, 555012), (162, 503622), (189, 431676), (196, 416259), (243, 335748), (252, 323757), (294, 277506), (324, 251811), (378, 215838), (441, 185004), (486, 167874), (567, 143892), (571, 142884), (588, 138753), (729, 111916), (756, 107919), (882, 92502), (972, 83937), (1134, 71946), (1142, 71442), (1323, 61668), (1458, 55958), (1701, 47964), (1713, 47628), (1764, 46251), (2268, 35973), (2284, 35721), (2646, 30834), (2916, 27979), (3402, 23982), (3426, 23814), (3969, 20556), (3997, 20412), (5103, 15988), (5139, 15876), (5292, 15417), (6804, 11991), (6852, 11907), (7938, 10278), (7994, 10206)]