81697280

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:174

約数の個数: 160

約数和(自身を含む): 230985216

約数和(自身を除く): 149287936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 56, 64, 70, 80, 94, 97, 112, 128, 140, 160, 188, 194, 224, 235, 256, 280, 320, 329, 376, 388, 448, 470, 485, 512, 560, 640, 658, 679, 752, 776, 896, 940, 970, 1120, 1280, 1316, 1358, 1504, 1552, 1645, 1792, 1880, 1940, 2240, 2560, 2632, 2716, 3008, 3104, 3290, 3395, 3584, 3760, 3880, 4480, 4559, 5264, 5432, 6016, 6208, 6580, 6790, 7520, 7760, 8960, 9118, 10528, 10864, 12032, 12416, 13160, 13580, 15040, 15520, 17920, 18236, 21056, 21728, 22795, 24064, 24832, 26320, 27160, 30080, 31040, 31913, 36472, 42112, 43456, 45590, 49664, 52640, 54320, 60160, 62080, 63826, 72944, 84224, 86912, 91180, 105280, 108640, 120320, 124160, 127652, 145888, 159565, 168448, 173824, 182360, 210560, 217280, 248320, 255304, 291776, 319130, 347648, 364720, 421120, 434560, 510608, 583552, 638260, 729440, 842240, 869120, 1021216, 1167104, 1276520, 1458880, 1738240, 2042432, 2334208, 2553040, 2917760, 4084864, 5106080, 5835520, 8169728, 10212160, 11671040, 16339456, 20424320, 40848640, 81697280]

約数ペア:

[(1, 81697280), (2, 40848640), (4, 20424320), (5, 16339456), (7, 11671040), (8, 10212160), (10, 8169728), (14, 5835520), (16, 5106080), (20, 4084864), (28, 2917760), (32, 2553040), (35, 2334208), (40, 2042432), (47, 1738240), (56, 1458880), (64, 1276520), (70, 1167104), (80, 1021216), (94, 869120), (97, 842240), (112, 729440), (128, 638260), (140, 583552), (160, 510608), (188, 434560), (194, 421120), (224, 364720), (235, 347648), (256, 319130), (280, 291776), (320, 255304), (329, 248320), (376, 217280), (388, 210560), (448, 182360), (470, 173824), (485, 168448), (512, 159565), (560, 145888), (640, 127652), (658, 124160), (679, 120320), (752, 108640), (776, 105280), (896, 91180), (940, 86912), (970, 84224), (1120, 72944), (1280, 63826), (1316, 62080), (1358, 60160), (1504, 54320), (1552, 52640), (1645, 49664), (1792, 45590), (1880, 43456), (1940, 42112), (2240, 36472), (2560, 31913), (2632, 31040), (2716, 30080), (3008, 27160), (3104, 26320), (3290, 24832), (3395, 24064), (3584, 22795), (3760, 21728), (3880, 21056), (4480, 18236), (4559, 17920), (5264, 15520), (5432, 15040), (6016, 13580), (6208, 13160), (6580, 12416), (6790, 12032), (7520, 10864), (7760, 10528), (8960, 9118)]