81920025

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:117

約数の個数: 144

約数和(自身を含む): 178113600

約数和(自身を除く): 96193575

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 27, 33, 45, 51, 55, 59, 75, 85, 99, 121, 135, 153, 165, 177, 187, 225, 255, 275, 295, 297, 363, 425, 459, 495, 531, 561, 605, 649, 675, 765, 825, 885, 935, 1003, 1089, 1275, 1475, 1485, 1593, 1683, 1815, 1947, 2057, 2295, 2475, 2655, 2805, 3009, 3025, 3245, 3267, 3825, 4425, 4675, 5015, 5049, 5445, 5841, 6171, 7139, 7425, 7965, 8415, 9027, 9075, 9735, 10285, 11033, 11475, 13275, 14025, 15045, 16225, 16335, 17523, 18513, 21417, 25075, 25245, 27081, 27225, 29205, 30855, 33099, 35695, 39825, 42075, 45135, 48675, 51425, 55165, 55539, 64251, 75225, 81675, 87615, 92565, 99297, 107085, 121363, 126225, 135405, 146025, 154275, 165495, 178475, 192753, 225675, 275825, 277695, 297891, 321255, 364089, 438075, 462825, 496485, 535425, 606815, 677025, 827475, 963765, 1092267, 1388475, 1489455, 1606275, 1820445, 2482425, 3034075, 3276801, 4818825, 5461335, 7447275, 9102225, 16384005, 27306675, 81920025]

約数ペア:

[(1, 81920025), (3, 27306675), (5, 16384005), (9, 9102225), (11, 7447275), (15, 5461335), (17, 4818825), (25, 3276801), (27, 3034075), (33, 2482425), (45, 1820445), (51, 1606275), (55, 1489455), (59, 1388475), (75, 1092267), (85, 963765), (99, 827475), (121, 677025), (135, 606815), (153, 535425), (165, 496485), (177, 462825), (187, 438075), (225, 364089), (255, 321255), (275, 297891), (295, 277695), (297, 275825), (363, 225675), (425, 192753), (459, 178475), (495, 165495), (531, 154275), (561, 146025), (605, 135405), (649, 126225), (675, 121363), (765, 107085), (825, 99297), (885, 92565), (935, 87615), (1003, 81675), (1089, 75225), (1275, 64251), (1475, 55539), (1485, 55165), (1593, 51425), (1683, 48675), (1815, 45135), (1947, 42075), (2057, 39825), (2295, 35695), (2475, 33099), (2655, 30855), (2805, 29205), (3009, 27225), (3025, 27081), (3245, 25245), (3267, 25075), (3825, 21417), (4425, 18513), (4675, 17523), (5015, 16335), (5049, 16225), (5445, 15045), (5841, 14025), (6171, 13275), (7139, 11475), (7425, 11033), (7965, 10285), (8415, 9735), (9027, 9075)]