1661589215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^2\times {\mathrm{461}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 2381103648

約数和(自身を除く): 719514433

約数列:

[1, 5, 11, 13, 55, 65, 71, 143, 355, 461, 715, 781, 923, 2305, 3905, 4615, 5041, 5071, 5993, 10153, 25205, 25355, 29965, 32731, 50765, 55451, 65533, 65923, 163655, 277255, 327665, 329615, 360041, 425503, 720863, 1800205, 2127515, 2323901, 3604315, 4680533, 11619505, 23402665, 25562911, 30210713, 127814555, 151053565, 332317843, 1661589215]

約数ペア:

[(1, 1661589215), (5, 332317843), (11, 151053565), (13, 127814555), (55, 30210713), (65, 25562911), (71, 23402665), (143, 11619505), (355, 4680533), (461, 3604315), (715, 2323901), (781, 2127515), (923, 1800205), (2305, 720863), (3905, 425503), (4615, 360041), (5041, 329615), (5071, 327665), (5993, 277255), (10153, 163655), (25205, 65923), (25355, 65533), (29965, 55451), (32731, 50765)]