18138388

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 35985600

約数和(自身を除く): 17847212

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 101, 139, 202, 278, 323, 404, 556, 646, 1292, 1717, 1919, 2363, 2641, 3434, 3838, 4726, 5282, 6868, 7676, 9452, 10564, 14039, 28078, 32623, 44897, 56156, 65246, 89794, 130492, 179588, 238663, 266741, 477326, 533482, 954652, 1066964, 4534597, 9069194, 18138388]

約数ペア:

[(1, 18138388), (2, 9069194), (4, 4534597), (17, 1066964), (19, 954652), (34, 533482), (38, 477326), (68, 266741), (76, 238663), (101, 179588), (139, 130492), (202, 89794), (278, 65246), (323, 56156), (404, 44897), (556, 32623), (646, 28078), (1292, 14039), (1717, 10564), (1919, 9452), (2363, 7676), (2641, 6868), (3434, 5282), (3838, 4726)]