81989545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 111331584

約数和(自身を除く): 29342039

約数列:

[1, 5, 11, 41, 55, 103, 205, 353, 451, 515, 1133, 1765, 2255, 3883, 4223, 5665, 14473, 19415, 21115, 36359, 46453, 72365, 159203, 181795, 232265, 399949, 796015, 1490719, 1999745, 7453595, 16397909, 81989545]

約数ペア:

[(1, 81989545), (5, 16397909), (11, 7453595), (41, 1999745), (55, 1490719), (103, 796015), (205, 399949), (353, 232265), (451, 181795), (515, 159203), (1133, 72365), (1765, 46453), (2255, 36359), (3883, 21115), (4223, 19415), (5665, 14473)]