81204606

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{709}}^1$

素因数の和:831

約数の個数: 80

約数和(自身を含む): 210307680

約数和(自身を除く): 129103074

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 101, 126, 162, 189, 202, 303, 378, 567, 606, 707, 709, 909, 1134, 1414, 1418, 1818, 2121, 2127, 2727, 4242, 4254, 4963, 5454, 6363, 6381, 8181, 9926, 12726, 12762, 14889, 16362, 19089, 19143, 29778, 38178, 38286, 44667, 57267, 57429, 71609, 89334, 114534, 114858, 134001, 143218, 214827, 268002, 402003, 429654, 501263, 644481, 804006, 1002526, 1288962, 1503789, 1933443, 3007578, 3866886, 4511367, 5800329, 9022734, 11600658, 13534101, 27068202, 40602303, 81204606]

約数ペア:

[(1, 81204606), (2, 40602303), (3, 27068202), (6, 13534101), (7, 11600658), (9, 9022734), (14, 5800329), (18, 4511367), (21, 3866886), (27, 3007578), (42, 1933443), (54, 1503789), (63, 1288962), (81, 1002526), (101, 804006), (126, 644481), (162, 501263), (189, 429654), (202, 402003), (303, 268002), (378, 214827), (567, 143218), (606, 134001), (707, 114858), (709, 114534), (909, 89334), (1134, 71609), (1414, 57429), (1418, 57267), (1818, 44667), (2121, 38286), (2127, 38178), (2727, 29778), (4242, 19143), (4254, 19089), (4963, 16362), (5454, 14889), (6363, 12762), (6381, 12726), (8181, 9926)]