40187628

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1997}}^1$

素因数の和:2063

約数の個数: 72

約数和(自身を含む): 111999888

約数和(自身を除く): 71812260

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 43, 52, 78, 86, 117, 129, 156, 172, 234, 258, 387, 468, 516, 559, 774, 1118, 1548, 1677, 1997, 2236, 3354, 3994, 5031, 5991, 6708, 7988, 10062, 11982, 17973, 20124, 23964, 25961, 35946, 51922, 71892, 77883, 85871, 103844, 155766, 171742, 233649, 257613, 311532, 343484, 467298, 515226, 772839, 934596, 1030452, 1116323, 1545678, 2232646, 3091356, 3348969, 4465292, 6697938, 10046907, 13395876, 20093814, 40187628]

約数ペア:

[(1, 40187628), (2, 20093814), (3, 13395876), (4, 10046907), (6, 6697938), (9, 4465292), (12, 3348969), (13, 3091356), (18, 2232646), (26, 1545678), (36, 1116323), (39, 1030452), (43, 934596), (52, 772839), (78, 515226), (86, 467298), (117, 343484), (129, 311532), (156, 257613), (172, 233649), (234, 171742), (258, 155766), (387, 103844), (468, 85871), (516, 77883), (559, 71892), (774, 51922), (1118, 35946), (1548, 25961), (1677, 23964), (1997, 20124), (2236, 17973), (3354, 11982), (3994, 10062), (5031, 7988), (5991, 6708)]