165078140

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{12487}}^1$

素因数の和:13157

約数の個数: 24

約数和(自身を含む): 347216352

約数和(自身を除く): 182138212

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3305, 6610, 12487, 13220, 24974, 49948, 62435, 124870, 249740, 8253907, 16507814, 33015628, 41269535, 82539070, 165078140]

約数ペア:

[(1, 165078140), (2, 82539070), (4, 41269535), (5, 33015628), (10, 16507814), (20, 8253907), (661, 249740), (1322, 124870), (2644, 62435), (3305, 49948), (6610, 24974), (12487, 13220)]