1215236

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 2358720

約数和(自身を除く): 1143484

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 389, 778, 781, 1556, 1562, 3124, 4279, 8558, 17116, 27619, 55238, 110476, 303809, 607618, 1215236]

約数ペア:

[(1, 1215236), (2, 607618), (4, 303809), (11, 110476), (22, 55238), (44, 27619), (71, 17116), (142, 8558), (284, 4279), (389, 3124), (778, 1562), (781, 1556)]