25686460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 56720160

約数和(自身を除く): 31033700

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 268, 290, 335, 580, 661, 670, 1322, 1340, 1943, 2644, 3305, 3886, 6610, 7772, 9715, 13220, 19169, 19430, 38338, 38860, 44287, 76676, 88574, 95845, 177148, 191690, 221435, 383380, 442870, 885740, 1284323, 2568646, 5137292, 6421615, 12843230, 25686460]

約数ペア:

[(1, 25686460), (2, 12843230), (4, 6421615), (5, 5137292), (10, 2568646), (20, 1284323), (29, 885740), (58, 442870), (67, 383380), (116, 221435), (134, 191690), (145, 177148), (268, 95845), (290, 88574), (335, 76676), (580, 44287), (661, 38860), (670, 38338), (1322, 19430), (1340, 19169), (1943, 13220), (2644, 9715), (3305, 7772), (3886, 6610)]