18761738782

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{463}}^1\times {\mathrm{2053}}^1$

素因数の和:2728

約数の個数: 32

約数和(自身を含む): 28820413440

約数和(自身を除く): 10058674658

約数列:

[1, 2, 71, 139, 142, 278, 463, 926, 2053, 4106, 9869, 19738, 32873, 64357, 65746, 128714, 145763, 285367, 291526, 570734, 950539, 1901078, 4569347, 9138694, 20261057, 40522114, 67488269, 132124921, 134976538, 264249842, 9380869391, 18761738782]

約数ペア:

[(1, 18761738782), (2, 9380869391), (71, 264249842), (139, 134976538), (142, 132124921), (278, 67488269), (463, 40522114), (926, 20261057), (2053, 9138694), (4106, 4569347), (9869, 1901078), (19738, 950539), (32873, 570734), (64357, 291526), (65746, 285367), (128714, 145763)]