278375967

素因数分解:

$3^3\times {\mathrm{179}}^1\times {\mathrm{239}}^1\times {\mathrm{241}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 418176000

約数和(自身を除く): 139800033

約数列:

[1, 3, 9, 27, 179, 239, 241, 537, 717, 723, 1611, 2151, 2169, 4833, 6453, 6507, 42781, 43139, 57599, 128343, 129417, 172797, 385029, 388251, 518391, 1155087, 1164753, 1555173, 10310221, 30930663, 92791989, 278375967]

約数ペア:

[(1, 278375967), (3, 92791989), (9, 30930663), (27, 10310221), (179, 1555173), (239, 1164753), (241, 1155087), (537, 518391), (717, 388251), (723, 385029), (1611, 172797), (2151, 129417), (2169, 128343), (4833, 57599), (6453, 43139), (6507, 42781)]