278357715

素因数分解:

$3^6\times 5^1\times {\mathrm{76367}}^1$

素因数の和:76390

約数の個数: 28

約数和(自身を含む): 500821344

約数和(自身を除く): 222463629

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 76367, 229101, 381835, 687303, 1145505, 2061909, 3436515, 6185727, 10309545, 18557181, 30928635, 55671543, 92785905, 278357715]

約数ペア:

[(1, 278357715), (3, 92785905), (5, 55671543), (9, 30928635), (15, 18557181), (27, 10309545), (45, 6185727), (81, 3436515), (135, 2061909), (243, 1145505), (405, 687303), (729, 381835), (1215, 229101), (3645, 76367)]