81239964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 214050816

約数和(自身を除く): 132810852

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 107, 124, 156, 157, 186, 214, 314, 321, 372, 403, 428, 471, 628, 642, 806, 942, 1209, 1284, 1391, 1612, 1884, 2041, 2418, 2782, 3317, 4082, 4173, 4836, 4867, 5564, 6123, 6634, 8164, 8346, 9734, 9951, 12246, 13268, 14601, 16692, 16799, 19468, 19902, 24492, 29202, 33598, 39804, 43121, 50397, 58404, 63271, 67196, 86242, 100794, 126542, 129363, 172484, 189813, 201588, 218387, 253084, 258726, 379626, 436774, 517452, 520769, 655161, 759252, 873548, 1041538, 1310322, 1562307, 2083076, 2620644, 3124614, 6249228, 6769997, 13539994, 20309991, 27079988, 40619982, 81239964]

約数ペア:

[(1, 81239964), (2, 40619982), (3, 27079988), (4, 20309991), (6, 13539994), (12, 6769997), (13, 6249228), (26, 3124614), (31, 2620644), (39, 2083076), (52, 1562307), (62, 1310322), (78, 1041538), (93, 873548), (107, 759252), (124, 655161), (156, 520769), (157, 517452), (186, 436774), (214, 379626), (314, 258726), (321, 253084), (372, 218387), (403, 201588), (428, 189813), (471, 172484), (628, 129363), (642, 126542), (806, 100794), (942, 86242), (1209, 67196), (1284, 63271), (1391, 58404), (1612, 50397), (1884, 43121), (2041, 39804), (2418, 33598), (2782, 29202), (3317, 24492), (4082, 19902), (4173, 19468), (4836, 16799), (4867, 16692), (5564, 14601), (6123, 13268), (6634, 12246), (8164, 9951), (8346, 9734)]