164401180

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{17987}}^1$

素因数の和:18453

約数の個数: 24

約数和(自身を含む): 346017168

約数和(自身を除く): 181615988

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285, 4570, 9140, 17987, 35974, 71948, 89935, 179870, 359740, 8220059, 16440118, 32880236, 41100295, 82200590, 164401180]

約数ペア:

[(1, 164401180), (2, 82200590), (4, 41100295), (5, 32880236), (10, 16440118), (20, 8220059), (457, 359740), (914, 179870), (1828, 89935), (2285, 71948), (4570, 35974), (9140, 17987)]