81617760

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{2699}}^1$

素因数の和:2730

約数の個数: 192

約数和(自身を含む): 326592000

約数和(自身を除く): 244974240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 2699, 3024, 3360, 3780, 4320, 5040, 5398, 6048, 7560, 8097, 10080, 10796, 13495, 15120, 16194, 18893, 21592, 24291, 26990, 30240, 32388, 37786, 40485, 43184, 48582, 53980, 56679, 64776, 72873, 75572, 80970, 86368, 94465, 97164, 107960, 113358, 121455, 129552, 145746, 151144, 161940, 170037, 188930, 194328, 215920, 226716, 242910, 259104, 283395, 291492, 302288, 323880, 340074, 364365, 377860, 388656, 431840, 453432, 485820, 510111, 566790, 582984, 604576, 647760, 680148, 728730, 755720, 777312, 850185, 906864, 971640, 1020222, 1133580, 1165968, 1295520, 1360296, 1457460, 1511440, 1700370, 1813728, 1943280, 2040444, 2267160, 2331936, 2550555, 2720592, 2914920, 3022880, 3400740, 3886560, 4080888, 4534320, 5101110, 5441184, 5829840, 6801480, 8161776, 9068640, 10202220, 11659680, 13602960, 16323552, 20404440, 27205920, 40808880, 81617760]

約数ペア:

[(1, 81617760), (2, 40808880), (3, 27205920), (4, 20404440), (5, 16323552), (6, 13602960), (7, 11659680), (8, 10202220), (9, 9068640), (10, 8161776), (12, 6801480), (14, 5829840), (15, 5441184), (16, 5101110), (18, 4534320), (20, 4080888), (21, 3886560), (24, 3400740), (27, 3022880), (28, 2914920), (30, 2720592), (32, 2550555), (35, 2331936), (36, 2267160), (40, 2040444), (42, 1943280), (45, 1813728), (48, 1700370), (54, 1511440), (56, 1457460), (60, 1360296), (63, 1295520), (70, 1165968), (72, 1133580), (80, 1020222), (84, 971640), (90, 906864), (96, 850185), (105, 777312), (108, 755720), (112, 728730), (120, 680148), (126, 647760), (135, 604576), (140, 582984), (144, 566790), (160, 510111), (168, 485820), (180, 453432), (189, 431840), (210, 388656), (216, 377860), (224, 364365), (240, 340074), (252, 323880), (270, 302288), (280, 291492), (288, 283395), (315, 259104), (336, 242910), (360, 226716), (378, 215920), (420, 194328), (432, 188930), (480, 170037), (504, 161940), (540, 151144), (560, 145746), (630, 129552), (672, 121455), (720, 113358), (756, 107960), (840, 97164), (864, 94465), (945, 86368), (1008, 80970), (1080, 75572), (1120, 72873), (1260, 64776), (1440, 56679), (1512, 53980), (1680, 48582), (1890, 43184), (2016, 40485), (2160, 37786), (2520, 32388), (2699, 30240), (3024, 26990), (3360, 24291), (3780, 21592), (4320, 18893), (5040, 16194), (5398, 15120), (6048, 13495), (7560, 10796), (8097, 10080)]