278679989

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1\times {\mathrm{1931}}^1$

素因数の和:2380

約数の個数: 16

約数和(自身を含む): 325503360

約数和(自身を除く): 46823371

約数列:

[1, 7, 53, 371, 389, 1931, 2723, 13517, 20617, 102343, 144319, 716401, 751159, 5258113, 39811427, 278679989]

約数ペア:

[(1, 278679989), (7, 39811427), (53, 5258113), (371, 751159), (389, 716401), (1931, 144319), (2723, 102343), (13517, 20617)]