1978814880

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{65437}}^1$

素因数の和:65468

約数の個数: 192

約数和(自身を含む): 7915380480

約数和(自身を除く): 5936565600

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, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 65437, 130874, 196311, 261748, 327185, 392622, 458059, 523496, 588933, 654370, 785244, 916118, 981555, 1046992, 1177866, 1308740, 1374177, 1570488, 1766799, 1832236, 1963110, 2093984, 2290295, 2355732, 2617480, 2748354, 2944665, 3140976, 3533598, 3664472, 3926220, 4122531, 4580590, 4711464, 5234960, 5496708, 5889330, 6281952, 6870885, 7067196, 7328944, 7852440, 8245062, 8833995, 9161180, 9422928, 10469920, 10993416, 11778660, 12367593, 13741770, 14134392, 14657888, 15704880, 16490124, 17667990, 18322360, 18845856, 20612655, 21986832, 23557320, 24735186, 27483540, 28268784, 31409760, 32980248, 35335980, 36644720, 41225310, 43973664, 47114640, 49470372, 54967080, 56537568, 61837965, 65960496, 70671960, 73289440, 82450620, 94229280, 98940744, 109934160, 123675930, 131920992, 141343920, 164901240, 197881488, 219868320, 247351860, 282687840, 329802480, 395762976, 494703720, 659604960, 989407440, 1978814880]

約数ペア:

[(1, 1978814880), (2, 989407440), (3, 659604960), (4, 494703720), (5, 395762976), (6, 329802480), (7, 282687840), (8, 247351860), (9, 219868320), (10, 197881488), (12, 164901240), (14, 141343920), (15, 131920992), (16, 123675930), (18, 109934160), (20, 98940744), (21, 94229280), (24, 82450620), (27, 73289440), (28, 70671960), (30, 65960496), (32, 61837965), (35, 56537568), (36, 54967080), (40, 49470372), (42, 47114640), (45, 43973664), (48, 41225310), (54, 36644720), (56, 35335980), (60, 32980248), (63, 31409760), (70, 28268784), (72, 27483540), (80, 24735186), (84, 23557320), (90, 21986832), (96, 20612655), (105, 18845856), (108, 18322360), (112, 17667990), (120, 16490124), (126, 15704880), (135, 14657888), (140, 14134392), (144, 13741770), (160, 12367593), (168, 11778660), (180, 10993416), (189, 10469920), (210, 9422928), (216, 9161180), (224, 8833995), (240, 8245062), (252, 7852440), (270, 7328944), (280, 7067196), (288, 6870885), (315, 6281952), (336, 5889330), (360, 5496708), (378, 5234960), (420, 4711464), (432, 4580590), (480, 4122531), (504, 3926220), (540, 3664472), (560, 3533598), (630, 3140976), (672, 2944665), (720, 2748354), (756, 2617480), (840, 2355732), (864, 2290295), (945, 2093984), (1008, 1963110), (1080, 1832236), (1120, 1766799), (1260, 1570488), (1440, 1374177), (1512, 1308740), (1680, 1177866), (1890, 1046992), (2016, 981555), (2160, 916118), (2520, 785244), (3024, 654370), (3360, 588933), (3780, 523496), (4320, 458059), (5040, 392622), (6048, 327185), (7560, 261748), (10080, 196311), (15120, 130874), (30240, 65437)]