128408085

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^3$

素因数の和:117

約数の個数: 80

約数和(自身を含む): 256742640

約数和(自身を除く): 128334555

約数列:

[1, 3, 5, 9, 13, 15, 27, 29, 39, 45, 65, 81, 87, 117, 135, 145, 195, 261, 351, 377, 405, 435, 585, 783, 841, 1053, 1131, 1305, 1755, 1885, 2349, 2523, 3393, 3915, 4205, 5265, 5655, 7569, 10179, 10933, 11745, 12615, 16965, 22707, 24389, 30537, 32799, 37845, 50895, 54665, 68121, 73167, 98397, 113535, 121945, 152685, 163995, 219501, 295191, 317057, 340605, 365835, 491985, 658503, 885573, 951171, 1097505, 1475955, 1585285, 1975509, 2853513, 3292515, 4427865, 4755855, 8560539, 9877545, 14267565, 25681617, 42802695, 128408085]

約数ペア:

[(1, 128408085), (3, 42802695), (5, 25681617), (9, 14267565), (13, 9877545), (15, 8560539), (27, 4755855), (29, 4427865), (39, 3292515), (45, 2853513), (65, 1975509), (81, 1585285), (87, 1475955), (117, 1097505), (135, 951171), (145, 885573), (195, 658503), (261, 491985), (351, 365835), (377, 340605), (405, 317057), (435, 295191), (585, 219501), (783, 163995), (841, 152685), (1053, 121945), (1131, 113535), (1305, 98397), (1755, 73167), (1885, 68121), (2349, 54665), (2523, 50895), (3393, 37845), (3915, 32799), (4205, 30537), (5265, 24389), (5655, 22707), (7569, 16965), (10179, 12615), (10933, 11745)]