20161340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1069}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 45299520

約数和(自身を除く): 25138180

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 943, 1069, 1886, 2138, 3772, 4276, 4715, 5345, 9430, 10690, 18860, 21380, 24587, 43829, 49174, 87658, 98348, 122935, 175316, 219145, 245870, 438290, 491740, 876580, 1008067, 2016134, 4032268, 5040335, 10080670, 20161340]

約数ペア:

[(1, 20161340), (2, 10080670), (4, 5040335), (5, 4032268), (10, 2016134), (20, 1008067), (23, 876580), (41, 491740), (46, 438290), (82, 245870), (92, 219145), (115, 175316), (164, 122935), (205, 98348), (230, 87658), (410, 49174), (460, 43829), (820, 24587), (943, 21380), (1069, 18860), (1886, 10690), (2138, 9430), (3772, 5345), (4276, 4715)]