81638280

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:290

約数の個数: 192

約数和(自身を含む): 283832640

約数和(自身を除く): 202194360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 81, 90, 108, 111, 120, 135, 148, 162, 180, 185, 216, 222, 227, 243, 270, 296, 324, 333, 360, 370, 405, 444, 454, 486, 540, 555, 648, 666, 681, 740, 810, 888, 908, 972, 999, 1080, 1110, 1135, 1215, 1332, 1362, 1480, 1620, 1665, 1816, 1944, 1998, 2043, 2220, 2270, 2430, 2664, 2724, 2997, 3240, 3330, 3405, 3996, 4086, 4440, 4540, 4860, 4995, 5448, 5994, 6129, 6660, 6810, 7992, 8172, 8399, 8991, 9080, 9720, 9990, 10215, 11988, 12258, 13320, 13620, 14985, 16344, 16798, 17982, 18387, 19980, 20430, 23976, 24516, 25197, 27240, 29970, 30645, 33596, 35964, 36774, 39960, 40860, 41995, 44955, 49032, 50394, 55161, 59940, 61290, 67192, 71928, 73548, 75591, 81720, 83990, 89910, 91935, 100788, 110322, 119880, 122580, 125985, 147096, 151182, 167980, 179820, 183870, 201576, 220644, 226773, 245160, 251970, 275805, 302364, 335960, 359640, 367740, 377955, 441288, 453546, 503940, 551610, 604728, 680319, 735480, 755910, 907092, 1007880, 1103220, 1133865, 1360638, 1511820, 1814184, 2040957, 2206440, 2267730, 2721276, 3023640, 3401595, 4081914, 4535460, 5442552, 6803190, 8163828, 9070920, 10204785, 13606380, 16327656, 20409570, 27212760, 40819140, 81638280]

約数ペア:

[(1, 81638280), (2, 40819140), (3, 27212760), (4, 20409570), (5, 16327656), (6, 13606380), (8, 10204785), (9, 9070920), (10, 8163828), (12, 6803190), (15, 5442552), (18, 4535460), (20, 4081914), (24, 3401595), (27, 3023640), (30, 2721276), (36, 2267730), (37, 2206440), (40, 2040957), (45, 1814184), (54, 1511820), (60, 1360638), (72, 1133865), (74, 1103220), (81, 1007880), (90, 907092), (108, 755910), (111, 735480), (120, 680319), (135, 604728), (148, 551610), (162, 503940), (180, 453546), (185, 441288), (216, 377955), (222, 367740), (227, 359640), (243, 335960), (270, 302364), (296, 275805), (324, 251970), (333, 245160), (360, 226773), (370, 220644), (405, 201576), (444, 183870), (454, 179820), (486, 167980), (540, 151182), (555, 147096), (648, 125985), (666, 122580), (681, 119880), (740, 110322), (810, 100788), (888, 91935), (908, 89910), (972, 83990), (999, 81720), (1080, 75591), (1110, 73548), (1135, 71928), (1215, 67192), (1332, 61290), (1362, 59940), (1480, 55161), (1620, 50394), (1665, 49032), (1816, 44955), (1944, 41995), (1998, 40860), (2043, 39960), (2220, 36774), (2270, 35964), (2430, 33596), (2664, 30645), (2724, 29970), (2997, 27240), (3240, 25197), (3330, 24516), (3405, 23976), (3996, 20430), (4086, 19980), (4440, 18387), (4540, 17982), (4860, 16798), (4995, 16344), (5448, 14985), (5994, 13620), (6129, 13320), (6660, 12258), (6810, 11988), (7992, 10215), (8172, 9990), (8399, 9720), (8991, 9080)]