20180072

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5333}}^1$

素因数の和:5393

約数の個数: 32

約数和(自身を含む): 42245280

約数和(自身を除く): 22065208

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5333, 10666, 21332, 42664, 58663, 117326, 229319, 234652, 458638, 469304, 917276, 1834552, 2522509, 5045018, 10090036, 20180072]

約数ペア:

[(1, 20180072), (2, 10090036), (4, 5045018), (8, 2522509), (11, 1834552), (22, 917276), (43, 469304), (44, 458638), (86, 234652), (88, 229319), (172, 117326), (344, 58663), (473, 42664), (946, 21332), (1892, 10666), (3784, 5333)]