258420120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:718

約数の個数: 192

約数和(自身を含む): 916012800

約数和(自身を除く): 657592680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 71, 84, 98, 105, 120, 140, 142, 147, 168, 196, 210, 213, 245, 280, 284, 294, 355, 392, 420, 426, 490, 497, 568, 588, 619, 710, 735, 840, 852, 980, 994, 1065, 1176, 1238, 1420, 1470, 1491, 1704, 1857, 1960, 1988, 2130, 2476, 2485, 2840, 2940, 2982, 3095, 3479, 3714, 3976, 4260, 4333, 4952, 4970, 5880, 5964, 6190, 6958, 7428, 7455, 8520, 8666, 9285, 9940, 10437, 11928, 12380, 12999, 13916, 14856, 14910, 17332, 17395, 18570, 19880, 20874, 21665, 24760, 25998, 27832, 29820, 30331, 34664, 34790, 37140, 41748, 43330, 43949, 51996, 52185, 59640, 60662, 64995, 69580, 74280, 83496, 86660, 87898, 90993, 103992, 104370, 121324, 129990, 131847, 139160, 151655, 173320, 175796, 181986, 208740, 219745, 242648, 259980, 263694, 303310, 307643, 351592, 363972, 417480, 439490, 454965, 519960, 527388, 606620, 615286, 659235, 727944, 878980, 909930, 922929, 1054776, 1213240, 1230572, 1318470, 1538215, 1757960, 1819860, 1845858, 2153501, 2461144, 2636940, 3076430, 3639720, 3691716, 4307002, 4614645, 5273880, 6152860, 6460503, 7383432, 8614004, 9229290, 10767505, 12305720, 12921006, 17228008, 18458580, 21535010, 25842012, 32302515, 36917160, 43070020, 51684024, 64605030, 86140040, 129210060, 258420120]

約数ペア:

[(1, 258420120), (2, 129210060), (3, 86140040), (4, 64605030), (5, 51684024), (6, 43070020), (7, 36917160), (8, 32302515), (10, 25842012), (12, 21535010), (14, 18458580), (15, 17228008), (20, 12921006), (21, 12305720), (24, 10767505), (28, 9229290), (30, 8614004), (35, 7383432), (40, 6460503), (42, 6152860), (49, 5273880), (56, 4614645), (60, 4307002), (70, 3691716), (71, 3639720), (84, 3076430), (98, 2636940), (105, 2461144), (120, 2153501), (140, 1845858), (142, 1819860), (147, 1757960), (168, 1538215), (196, 1318470), (210, 1230572), (213, 1213240), (245, 1054776), (280, 922929), (284, 909930), (294, 878980), (355, 727944), (392, 659235), (420, 615286), (426, 606620), (490, 527388), (497, 519960), (568, 454965), (588, 439490), (619, 417480), (710, 363972), (735, 351592), (840, 307643), (852, 303310), (980, 263694), (994, 259980), (1065, 242648), (1176, 219745), (1238, 208740), (1420, 181986), (1470, 175796), (1491, 173320), (1704, 151655), (1857, 139160), (1960, 131847), (1988, 129990), (2130, 121324), (2476, 104370), (2485, 103992), (2840, 90993), (2940, 87898), (2982, 86660), (3095, 83496), (3479, 74280), (3714, 69580), (3976, 64995), (4260, 60662), (4333, 59640), (4952, 52185), (4970, 51996), (5880, 43949), (5964, 43330), (6190, 41748), (6958, 37140), (7428, 34790), (7455, 34664), (8520, 30331), (8666, 29820), (9285, 27832), (9940, 25998), (10437, 24760), (11928, 21665), (12380, 20874), (12999, 19880), (13916, 18570), (14856, 17395), (14910, 17332)]