1989104

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:225

約数の個数: 40

約数和(自身を含む): 4239312

約数和(自身を除く): 2250208

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 73, 104, 131, 146, 208, 262, 292, 524, 584, 949, 1048, 1168, 1703, 1898, 2096, 3406, 3796, 6812, 7592, 9563, 13624, 15184, 19126, 27248, 38252, 76504, 124319, 153008, 248638, 497276, 994552, 1989104]

約数ペア:

[(1, 1989104), (2, 994552), (4, 497276), (8, 248638), (13, 153008), (16, 124319), (26, 76504), (52, 38252), (73, 27248), (104, 19126), (131, 15184), (146, 13624), (208, 9563), (262, 7592), (292, 6812), (524, 3796), (584, 3406), (949, 2096), (1048, 1898), (1168, 1703)]