128672971

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 168099840

約数和(自身を除く): 39426869

約数列:

[1, 7, 23, 29, 31, 49, 127, 161, 203, 217, 667, 713, 889, 899, 1127, 1421, 1519, 2921, 3683, 3937, 4669, 4991, 6223, 6293, 20447, 20677, 25781, 27559, 32683, 34937, 44051, 84709, 90551, 114173, 143129, 144739, 180467, 192913, 592963, 633857, 799211, 1013173, 2625979, 4150741, 4436999, 5594477, 18381853, 128672971]

約数ペア:

[(1, 128672971), (7, 18381853), (23, 5594477), (29, 4436999), (31, 4150741), (49, 2625979), (127, 1013173), (161, 799211), (203, 633857), (217, 592963), (667, 192913), (713, 180467), (889, 144739), (899, 143129), (1127, 114173), (1421, 90551), (1519, 84709), (2921, 44051), (3683, 34937), (3937, 32683), (4669, 27559), (4991, 25781), (6223, 20677), (6293, 20447)]