28666275640

素因数分解:

$2^3\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{359587}}^1$

素因数の和:361591

約数の個数: 32

約数和(自身を含む): 64531662480

約数和(自身を除く): 35865386840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1993, 3986, 7972, 9965, 15944, 19930, 39860, 79720, 359587, 719174, 1438348, 1797935, 2876696, 3595870, 7191740, 14383480, 716656891, 1433313782, 2866627564, 3583284455, 5733255128, 7166568910, 14333137820, 28666275640]

約数ペア:

[(1, 28666275640), (2, 14333137820), (4, 7166568910), (5, 5733255128), (8, 3583284455), (10, 2866627564), (20, 1433313782), (40, 716656891), (1993, 14383480), (3986, 7191740), (7972, 3595870), (9965, 2876696), (15944, 1797935), (19930, 1438348), (39860, 719174), (79720, 359587)]