81717120

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{4729}}^1$

素因数の和:4757

約数の個数: 128

約数和(自身を含む): 289476000

約数和(自身を除く): 207758880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1440, 1728, 1920, 2160, 2880, 3456, 4320, 4729, 5760, 8640, 9458, 14187, 17280, 18916, 23645, 28374, 37832, 42561, 47290, 56748, 70935, 75664, 85122, 94580, 113496, 127683, 141870, 151328, 170244, 189160, 212805, 226992, 255366, 283740, 302656, 340488, 378320, 425610, 453984, 510732, 567480, 605312, 638415, 680976, 756640, 851220, 907968, 1021464, 1134960, 1276830, 1361952, 1513280, 1702440, 1815936, 2042928, 2269920, 2553660, 2723904, 3026560, 3404880, 4085856, 4539840, 5107320, 5447808, 6809760, 8171712, 9079680, 10214640, 13619520, 16343424, 20429280, 27239040, 40858560, 81717120]

約数ペア:

[(1, 81717120), (2, 40858560), (3, 27239040), (4, 20429280), (5, 16343424), (6, 13619520), (8, 10214640), (9, 9079680), (10, 8171712), (12, 6809760), (15, 5447808), (16, 5107320), (18, 4539840), (20, 4085856), (24, 3404880), (27, 3026560), (30, 2723904), (32, 2553660), (36, 2269920), (40, 2042928), (45, 1815936), (48, 1702440), (54, 1513280), (60, 1361952), (64, 1276830), (72, 1134960), (80, 1021464), (90, 907968), (96, 851220), (108, 756640), (120, 680976), (128, 638415), (135, 605312), (144, 567480), (160, 510732), (180, 453984), (192, 425610), (216, 378320), (240, 340488), (270, 302656), (288, 283740), (320, 255366), (360, 226992), (384, 212805), (432, 189160), (480, 170244), (540, 151328), (576, 141870), (640, 127683), (720, 113496), (864, 94580), (960, 85122), (1080, 75664), (1152, 70935), (1440, 56748), (1728, 47290), (1920, 42561), (2160, 37832), (2880, 28374), (3456, 23645), (4320, 18916), (4729, 17280), (5760, 14187), (8640, 9458)]