208984984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{27527}}^1$

素因数の和:27619

約数の個数: 32

約数和(自身を含む): 427785120

約数和(自身を除く): 218800136

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 3796, 7592, 27527, 55054, 110108, 220216, 357851, 715702, 1431404, 2009471, 2862808, 4018942, 8037884, 16075768, 26123123, 52246246, 104492492, 208984984]

約数ペア:

[(1, 208984984), (2, 104492492), (4, 52246246), (8, 26123123), (13, 16075768), (26, 8037884), (52, 4018942), (73, 2862808), (104, 2009471), (146, 1431404), (292, 715702), (584, 357851), (949, 220216), (1898, 110108), (3796, 55054), (7592, 27527)]