81494378

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1\times {\mathrm{307}}^1$

素因数の和:666

約数の個数: 32

約数和(自身を含む): 142754304

約数和(自身を除く): 61259926

約数列:

[1, 2, 7, 14, 67, 134, 283, 307, 469, 566, 614, 938, 1981, 2149, 3962, 4298, 18961, 20569, 37922, 41138, 86881, 132727, 143983, 173762, 265454, 287966, 608167, 1216334, 5821027, 11642054, 40747189, 81494378]

約数ペア:

[(1, 81494378), (2, 40747189), (7, 11642054), (14, 5821027), (67, 1216334), (134, 608167), (283, 287966), (307, 265454), (469, 173762), (566, 143983), (614, 132727), (938, 86881), (1981, 41138), (2149, 37922), (3962, 20569), (4298, 18961)]