81492480

素因数分解:

$2^9\times 3^5\times 5^1\times {\mathrm{131}}^1$

素因数の和:169

約数の個数: 240

約数和(自身を含む): 294918624

約数和(自身を除く): 213426144

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, 81, 90, 96, 108, 120, 128, 131, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 262, 270, 288, 320, 324, 360, 384, 393, 405, 432, 480, 486, 512, 524, 540, 576, 640, 648, 655, 720, 768, 786, 810, 864, 960, 972, 1048, 1080, 1152, 1179, 1215, 1280, 1296, 1310, 1440, 1536, 1572, 1620, 1728, 1920, 1944, 1965, 2096, 2160, 2304, 2358, 2430, 2560, 2592, 2620, 2880, 3144, 3240, 3456, 3537, 3840, 3888, 3930, 4192, 4320, 4608, 4716, 4860, 5184, 5240, 5760, 5895, 6288, 6480, 6912, 7074, 7680, 7776, 7860, 8384, 8640, 9432, 9720, 10368, 10480, 10611, 11520, 11790, 12576, 12960, 13824, 14148, 15552, 15720, 16768, 17280, 17685, 18864, 19440, 20736, 20960, 21222, 23040, 23580, 25152, 25920, 28296, 31104, 31440, 31833, 33536, 34560, 35370, 37728, 38880, 41472, 41920, 42444, 47160, 50304, 51840, 53055, 56592, 62208, 62880, 63666, 67072, 69120, 70740, 75456, 77760, 83840, 84888, 94320, 100608, 103680, 106110, 113184, 124416, 125760, 127332, 141480, 150912, 155520, 159165, 167680, 169776, 188640, 201216, 207360, 212220, 226368, 251520, 254664, 282960, 301824, 311040, 318330, 335360, 339552, 377280, 424440, 452736, 503040, 509328, 565920, 603648, 622080, 636660, 679104, 754560, 848880, 905472, 1006080, 1018656, 1131840, 1273320, 1358208, 1509120, 1697760, 1810944, 2037312, 2263680, 2546640, 2716416, 3018240, 3395520, 4074624, 4527360, 5093280, 5432832, 6791040, 8149248, 9054720, 10186560, 13582080, 16298496, 20373120, 27164160, 40746240, 81492480]

約数ペア:

[(1, 81492480), (2, 40746240), (3, 27164160), (4, 20373120), (5, 16298496), (6, 13582080), (8, 10186560), (9, 9054720), (10, 8149248), (12, 6791040), (15, 5432832), (16, 5093280), (18, 4527360), (20, 4074624), (24, 3395520), (27, 3018240), (30, 2716416), (32, 2546640), (36, 2263680), (40, 2037312), (45, 1810944), (48, 1697760), (54, 1509120), (60, 1358208), (64, 1273320), (72, 1131840), (80, 1018656), (81, 1006080), (90, 905472), (96, 848880), (108, 754560), (120, 679104), (128, 636660), (131, 622080), (135, 603648), (144, 565920), (160, 509328), (162, 503040), (180, 452736), (192, 424440), (216, 377280), (240, 339552), (243, 335360), (256, 318330), (262, 311040), (270, 301824), (288, 282960), (320, 254664), (324, 251520), (360, 226368), (384, 212220), (393, 207360), (405, 201216), (432, 188640), (480, 169776), (486, 167680), (512, 159165), (524, 155520), (540, 150912), (576, 141480), (640, 127332), (648, 125760), (655, 124416), (720, 113184), (768, 106110), (786, 103680), (810, 100608), (864, 94320), (960, 84888), (972, 83840), (1048, 77760), (1080, 75456), (1152, 70740), (1179, 69120), (1215, 67072), (1280, 63666), (1296, 62880), (1310, 62208), (1440, 56592), (1536, 53055), (1572, 51840), (1620, 50304), (1728, 47160), (1920, 42444), (1944, 41920), (1965, 41472), (2096, 38880), (2160, 37728), (2304, 35370), (2358, 34560), (2430, 33536), (2560, 31833), (2592, 31440), (2620, 31104), (2880, 28296), (3144, 25920), (3240, 25152), (3456, 23580), (3537, 23040), (3840, 21222), (3888, 20960), (3930, 20736), (4192, 19440), (4320, 18864), (4608, 17685), (4716, 17280), (4860, 16768), (5184, 15720), (5240, 15552), (5760, 14148), (5895, 13824), (6288, 12960), (6480, 12576), (6912, 11790), (7074, 11520), (7680, 10611), (7776, 10480), (7860, 10368), (8384, 9720), (8640, 9432)]