20768172

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1601}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 51674112

約数和(自身を除く): 30905940

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 47, 69, 92, 94, 138, 141, 188, 276, 282, 564, 1081, 1601, 2162, 3202, 3243, 4324, 4803, 6404, 6486, 9606, 12972, 19212, 36823, 73646, 75247, 110469, 147292, 150494, 220938, 225741, 300988, 441876, 451482, 902964, 1730681, 3461362, 5192043, 6922724, 10384086, 20768172]

約数ペア:

[(1, 20768172), (2, 10384086), (3, 6922724), (4, 5192043), (6, 3461362), (12, 1730681), (23, 902964), (46, 451482), (47, 441876), (69, 300988), (92, 225741), (94, 220938), (138, 150494), (141, 147292), (188, 110469), (276, 75247), (282, 73646), (564, 36823), (1081, 19212), (1601, 12972), (2162, 9606), (3202, 6486), (3243, 6404), (4324, 4803)]