20512990404

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{117413}}^1$

素因数の和:117657

約数の個数: 72

約数和(自身を含む): 54363621312

約数和(自身を除く): 33850630908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 211, 276, 414, 422, 633, 828, 844, 1266, 1899, 2532, 3798, 4853, 7596, 9706, 14559, 19412, 29118, 43677, 58236, 87354, 117413, 174708, 234826, 352239, 469652, 704478, 1056717, 1408956, 2113434, 2700499, 4226868, 5400998, 8101497, 10801996, 16202994, 24304491, 24774143, 32405988, 48608982, 49548286, 74322429, 97217964, 99096572, 148644858, 222967287, 297289716, 445934574, 569805289, 891869148, 1139610578, 1709415867, 2279221156, 3418831734, 5128247601, 6837663468, 10256495202, 20512990404]

約数ペア:

[(1, 20512990404), (2, 10256495202), (3, 6837663468), (4, 5128247601), (6, 3418831734), (9, 2279221156), (12, 1709415867), (18, 1139610578), (23, 891869148), (36, 569805289), (46, 445934574), (69, 297289716), (92, 222967287), (138, 148644858), (207, 99096572), (211, 97217964), (276, 74322429), (414, 49548286), (422, 48608982), (633, 32405988), (828, 24774143), (844, 24304491), (1266, 16202994), (1899, 10801996), (2532, 8101497), (3798, 5400998), (4853, 4226868), (7596, 2700499), (9706, 2113434), (14559, 1408956), (19412, 1056717), (29118, 704478), (43677, 469652), (58236, 352239), (87354, 234826), (117413, 174708)]