80814720

素因数分解:

$2^7\times 3^1\times 5^1\times 7^2\times {\mathrm{859}}^1$

素因数の和:895

約数の個数: 192

約数和(自身を含む): 300002400

約数和(自身を除く): 219187680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 384, 392, 420, 448, 480, 490, 560, 588, 640, 672, 735, 784, 840, 859, 896, 960, 980, 1120, 1176, 1344, 1470, 1568, 1680, 1718, 1920, 1960, 2240, 2352, 2577, 2688, 2940, 3136, 3360, 3436, 3920, 4295, 4480, 4704, 5154, 5880, 6013, 6272, 6720, 6872, 7840, 8590, 9408, 10308, 11760, 12026, 12885, 13440, 13744, 15680, 17180, 18039, 18816, 20616, 23520, 24052, 25770, 27488, 30065, 31360, 34360, 36078, 41232, 42091, 47040, 48104, 51540, 54976, 60130, 68720, 72156, 82464, 84182, 90195, 94080, 96208, 103080, 109952, 120260, 126273, 137440, 144312, 164928, 168364, 180390, 192416, 206160, 210455, 240520, 252546, 274880, 288624, 329856, 336728, 360780, 384832, 412320, 420910, 481040, 505092, 549760, 577248, 631365, 673456, 721560, 769664, 824640, 841820, 962080, 1010184, 1154496, 1262730, 1346912, 1443120, 1649280, 1683640, 1924160, 2020368, 2308992, 2525460, 2693824, 2886240, 3367280, 3848320, 4040736, 5050920, 5387648, 5772480, 6734560, 8081472, 10101840, 11544960, 13469120, 16162944, 20203680, 26938240, 40407360, 80814720]

約数ペア:

[(1, 80814720), (2, 40407360), (3, 26938240), (4, 20203680), (5, 16162944), (6, 13469120), (7, 11544960), (8, 10101840), (10, 8081472), (12, 6734560), (14, 5772480), (15, 5387648), (16, 5050920), (20, 4040736), (21, 3848320), (24, 3367280), (28, 2886240), (30, 2693824), (32, 2525460), (35, 2308992), (40, 2020368), (42, 1924160), (48, 1683640), (49, 1649280), (56, 1443120), (60, 1346912), (64, 1262730), (70, 1154496), (80, 1010184), (84, 962080), (96, 841820), (98, 824640), (105, 769664), (112, 721560), (120, 673456), (128, 631365), (140, 577248), (147, 549760), (160, 505092), (168, 481040), (192, 420910), (196, 412320), (210, 384832), (224, 360780), (240, 336728), (245, 329856), (280, 288624), (294, 274880), (320, 252546), (336, 240520), (384, 210455), (392, 206160), (420, 192416), (448, 180390), (480, 168364), (490, 164928), (560, 144312), (588, 137440), (640, 126273), (672, 120260), (735, 109952), (784, 103080), (840, 96208), (859, 94080), (896, 90195), (960, 84182), (980, 82464), (1120, 72156), (1176, 68720), (1344, 60130), (1470, 54976), (1568, 51540), (1680, 48104), (1718, 47040), (1920, 42091), (1960, 41232), (2240, 36078), (2352, 34360), (2577, 31360), (2688, 30065), (2940, 27488), (3136, 25770), (3360, 24052), (3436, 23520), (3920, 20616), (4295, 18816), (4480, 18039), (4704, 17180), (5154, 15680), (5880, 13744), (6013, 13440), (6272, 12885), (6720, 12026), (6872, 11760), (7840, 10308), (8590, 9408)]