81286884

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{29}}^1\times {\mathrm{227}}^1$

素因数の和:287

約数の個数: 144

約数和(自身を含む): 248976000

約数和(自身を除く): 167689116

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 49, 58, 63, 84, 87, 98, 116, 126, 147, 174, 196, 203, 227, 252, 261, 294, 343, 348, 406, 441, 454, 522, 588, 609, 681, 686, 812, 882, 908, 1029, 1044, 1218, 1362, 1372, 1421, 1589, 1764, 1827, 2043, 2058, 2436, 2724, 2842, 3087, 3178, 3654, 4086, 4116, 4263, 4767, 5684, 6174, 6356, 6583, 7308, 8172, 8526, 9534, 9947, 11123, 12348, 12789, 13166, 14301, 17052, 19068, 19749, 19894, 22246, 25578, 26332, 28602, 29841, 33369, 39498, 39788, 44492, 46081, 51156, 57204, 59247, 59682, 66738, 77861, 78996, 89523, 92162, 100107, 118494, 119364, 133476, 138243, 155722, 179046, 184324, 200214, 233583, 236988, 276486, 311444, 322567, 358092, 400428, 414729, 467166, 552972, 645134, 700749, 829458, 934332, 967701, 1290268, 1401498, 1658916, 1935402, 2257969, 2802996, 2903103, 3870804, 4515938, 5806206, 6773907, 9031876, 11612412, 13547814, 20321721, 27095628, 40643442, 81286884]

約数ペア:

[(1, 81286884), (2, 40643442), (3, 27095628), (4, 20321721), (6, 13547814), (7, 11612412), (9, 9031876), (12, 6773907), (14, 5806206), (18, 4515938), (21, 3870804), (28, 2903103), (29, 2802996), (36, 2257969), (42, 1935402), (49, 1658916), (58, 1401498), (63, 1290268), (84, 967701), (87, 934332), (98, 829458), (116, 700749), (126, 645134), (147, 552972), (174, 467166), (196, 414729), (203, 400428), (227, 358092), (252, 322567), (261, 311444), (294, 276486), (343, 236988), (348, 233583), (406, 200214), (441, 184324), (454, 179046), (522, 155722), (588, 138243), (609, 133476), (681, 119364), (686, 118494), (812, 100107), (882, 92162), (908, 89523), (1029, 78996), (1044, 77861), (1218, 66738), (1362, 59682), (1372, 59247), (1421, 57204), (1589, 51156), (1764, 46081), (1827, 44492), (2043, 39788), (2058, 39498), (2436, 33369), (2724, 29841), (2842, 28602), (3087, 26332), (3178, 25578), (3654, 22246), (4086, 19894), (4116, 19749), (4263, 19068), (4767, 17052), (5684, 14301), (6174, 13166), (6356, 12789), (6583, 12348), (7308, 11123), (8172, 9947), (8526, 9534)]