19680428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2039}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 36556800

約数和(自身を除く): 16876372

約数列:

[1, 2, 4, 19, 38, 76, 127, 254, 508, 2039, 2413, 4078, 4826, 8156, 9652, 38741, 77482, 154964, 258953, 517906, 1035812, 4920107, 9840214, 19680428]

約数ペア:

[(1, 19680428), (2, 9840214), (4, 4920107), (19, 1035812), (38, 517906), (76, 258953), (127, 154964), (254, 77482), (508, 38741), (2039, 9652), (2413, 8156), (4078, 4826)]