81481456

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{673}}^1$

素因数の和:758

約数の個数: 80

約数和(自身を含む): 192559104

約数和(自身を除く): 111077648

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 47, 56, 92, 94, 112, 161, 184, 188, 322, 329, 368, 376, 644, 658, 673, 752, 1081, 1288, 1316, 1346, 2162, 2576, 2632, 2692, 4324, 4711, 5264, 5384, 7567, 8648, 9422, 10768, 15134, 15479, 17296, 18844, 30268, 30958, 31631, 37688, 60536, 61916, 63262, 75376, 108353, 121072, 123832, 126524, 216706, 221417, 247664, 253048, 433412, 442834, 506096, 727513, 866824, 885668, 1455026, 1733648, 1771336, 2910052, 3542672, 5092591, 5820104, 10185182, 11640208, 20370364, 40740728, 81481456]

約数ペア:

[(1, 81481456), (2, 40740728), (4, 20370364), (7, 11640208), (8, 10185182), (14, 5820104), (16, 5092591), (23, 3542672), (28, 2910052), (46, 1771336), (47, 1733648), (56, 1455026), (92, 885668), (94, 866824), (112, 727513), (161, 506096), (184, 442834), (188, 433412), (322, 253048), (329, 247664), (368, 221417), (376, 216706), (644, 126524), (658, 123832), (673, 121072), (752, 108353), (1081, 75376), (1288, 63262), (1316, 61916), (1346, 60536), (2162, 37688), (2576, 31631), (2632, 30958), (2692, 30268), (4324, 18844), (4711, 17296), (5264, 15479), (5384, 15134), (7567, 10768), (8648, 9422)]