680925420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{499}}^1$

素因数の和:562

約数の個数: 288

約数和(自身を含む): 2560320000

約数和(自身を除く): 1879394580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 361, 378, 380, 399, 420, 499, 513, 532, 540, 570, 630, 665, 684, 722, 756, 798, 855, 945, 998, 1026, 1083, 1140, 1197, 1260, 1330, 1444, 1497, 1596, 1710, 1805, 1890, 1995, 1996, 2052, 2166, 2394, 2495, 2527, 2565, 2660, 2994, 3249, 3420, 3493, 3591, 3610, 3780, 3990, 4332, 4491, 4788, 4990, 5054, 5130, 5415, 5985, 5988, 6498, 6986, 7182, 7220, 7485, 7581, 7980, 8982, 9481, 9747, 9980, 10108, 10260, 10479, 10830, 11970, 12635, 12996, 13473, 13972, 14364, 14970, 15162, 16245, 17465, 17955, 17964, 18962, 19494, 20958, 21660, 22455, 22743, 23940, 25270, 26946, 28443, 29940, 30324, 31437, 32490, 34930, 35910, 37905, 37924, 38988, 41916, 44910, 45486, 47405, 48735, 50540, 52395, 53892, 56886, 62874, 64980, 66367, 67365, 68229, 69860, 71820, 75810, 85329, 89820, 90972, 94311, 94810, 97470, 104790, 113715, 113772, 125748, 132734, 134730, 136458, 142215, 151620, 157185, 170658, 180139, 188622, 189620, 194940, 199101, 209580, 227430, 255987, 265468, 269460, 272916, 284430, 314370, 331835, 341145, 341316, 360278, 377244, 398202, 426645, 454860, 471555, 511974, 540417, 568860, 597303, 628740, 663670, 682290, 720556, 796404, 853290, 900695, 943110, 995505, 1023948, 1080834, 1194606, 1260973, 1279935, 1327340, 1364580, 1621251, 1706580, 1791909, 1801390, 1886220, 1991010, 2161668, 2389212, 2521946, 2559870, 2702085, 2986515, 3242502, 3583818, 3602780, 3782919, 3982020, 4863753, 5043892, 5119740, 5404170, 5973030, 6304865, 6485004, 7167636, 7565838, 8106255, 8959545, 9727506, 10808340, 11348757, 11946060, 12609730, 15131676, 16212510, 17919090, 18914595, 19455012, 22697514, 24318765, 25219460, 32425020, 34046271, 35838180, 37829190, 45395028, 48637530, 56743785, 68092542, 75658380, 97275060, 113487570, 136185084, 170231355, 226975140, 340462710, 680925420]

約数ペア:

[(1, 680925420), (2, 340462710), (3, 226975140), (4, 170231355), (5, 136185084), (6, 113487570), (7, 97275060), (9, 75658380), (10, 68092542), (12, 56743785), (14, 48637530), (15, 45395028), (18, 37829190), (19, 35838180), (20, 34046271), (21, 32425020), (27, 25219460), (28, 24318765), (30, 22697514), (35, 19455012), (36, 18914595), (38, 17919090), (42, 16212510), (45, 15131676), (54, 12609730), (57, 11946060), (60, 11348757), (63, 10808340), (70, 9727506), (76, 8959545), (84, 8106255), (90, 7565838), (95, 7167636), (105, 6485004), (108, 6304865), (114, 5973030), (126, 5404170), (133, 5119740), (135, 5043892), (140, 4863753), (171, 3982020), (180, 3782919), (189, 3602780), (190, 3583818), (210, 3242502), (228, 2986515), (252, 2702085), (266, 2559870), (270, 2521946), (285, 2389212), (315, 2161668), (342, 1991010), (361, 1886220), (378, 1801390), (380, 1791909), (399, 1706580), (420, 1621251), (499, 1364580), (513, 1327340), (532, 1279935), (540, 1260973), (570, 1194606), (630, 1080834), (665, 1023948), (684, 995505), (722, 943110), (756, 900695), (798, 853290), (855, 796404), (945, 720556), (998, 682290), (1026, 663670), (1083, 628740), (1140, 597303), (1197, 568860), (1260, 540417), (1330, 511974), (1444, 471555), (1497, 454860), (1596, 426645), (1710, 398202), (1805, 377244), (1890, 360278), (1995, 341316), (1996, 341145), (2052, 331835), (2166, 314370), (2394, 284430), (2495, 272916), (2527, 269460), (2565, 265468), (2660, 255987), (2994, 227430), (3249, 209580), (3420, 199101), (3493, 194940), (3591, 189620), (3610, 188622), (3780, 180139), (3990, 170658), (4332, 157185), (4491, 151620), (4788, 142215), (4990, 136458), (5054, 134730), (5130, 132734), (5415, 125748), (5985, 113772), (5988, 113715), (6498, 104790), (6986, 97470), (7182, 94810), (7220, 94311), (7485, 90972), (7581, 89820), (7980, 85329), (8982, 75810), (9481, 71820), (9747, 69860), (9980, 68229), (10108, 67365), (10260, 66367), (10479, 64980), (10830, 62874), (11970, 56886), (12635, 53892), (12996, 52395), (13473, 50540), (13972, 48735), (14364, 47405), (14970, 45486), (15162, 44910), (16245, 41916), (17465, 38988), (17955, 37924), (17964, 37905), (18962, 35910), (19494, 34930), (20958, 32490), (21660, 31437), (22455, 30324), (22743, 29940), (23940, 28443), (25270, 26946)]