256158

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:141

約数の個数: 48

約数和(自身を含む): 673920

約数和(自身を除く): 417762

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 107, 114, 126, 133, 171, 214, 266, 321, 342, 399, 642, 749, 798, 963, 1197, 1498, 1926, 2033, 2247, 2394, 4066, 4494, 6099, 6741, 12198, 13482, 14231, 18297, 28462, 36594, 42693, 85386, 128079, 256158]

約数ペア:

[(1, 256158), (2, 128079), (3, 85386), (6, 42693), (7, 36594), (9, 28462), (14, 18297), (18, 14231), (19, 13482), (21, 12198), (38, 6741), (42, 6099), (57, 4494), (63, 4066), (107, 2394), (114, 2247), (126, 2033), (133, 1926), (171, 1498), (214, 1197), (266, 963), (321, 798), (342, 749), (399, 642)]