81525960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:205

約数の個数: 256

約数和(自身を含む): 298080000

約数和(自身を除く): 216554040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 29, 30, 36, 38, 40, 45, 54, 57, 58, 60, 72, 76, 87, 90, 95, 108, 114, 116, 120, 135, 137, 145, 152, 171, 174, 180, 190, 216, 228, 232, 261, 270, 274, 285, 290, 342, 348, 360, 380, 411, 435, 456, 513, 522, 540, 548, 551, 570, 580, 684, 685, 696, 760, 783, 822, 855, 870, 1026, 1044, 1080, 1096, 1102, 1140, 1160, 1233, 1305, 1368, 1370, 1566, 1644, 1653, 1710, 1740, 2052, 2055, 2088, 2204, 2280, 2466, 2565, 2603, 2610, 2740, 2755, 3132, 3288, 3306, 3420, 3480, 3699, 3915, 3973, 4104, 4110, 4408, 4932, 4959, 5130, 5206, 5220, 5480, 5510, 6165, 6264, 6612, 6840, 7398, 7809, 7830, 7946, 8220, 8265, 9864, 9918, 10260, 10412, 10440, 11020, 11919, 12330, 13015, 13224, 14796, 14877, 15618, 15660, 15892, 16440, 16530, 18495, 19836, 19865, 20520, 20824, 22040, 23427, 23838, 24660, 24795, 26030, 29592, 29754, 31236, 31320, 31784, 33060, 35757, 36990, 39045, 39672, 39730, 46854, 47676, 49320, 49590, 52060, 59508, 59595, 62472, 66120, 70281, 71514, 73980, 74385, 75487, 78090, 79460, 93708, 95352, 99180, 104120, 107271, 117135, 119016, 119190, 140562, 143028, 147960, 148770, 150974, 156180, 158920, 178785, 187416, 198360, 214542, 226461, 234270, 238380, 281124, 286056, 297540, 301948, 312360, 351405, 357570, 377435, 429084, 452922, 468540, 476760, 536355, 562248, 595080, 603896, 679383, 702810, 715140, 754870, 858168, 905844, 937080, 1072710, 1132305, 1358766, 1405620, 1430280, 1509740, 1811688, 2038149, 2145420, 2264610, 2717532, 2811240, 3019480, 3396915, 4076298, 4290840, 4529220, 5435064, 6793830, 8152596, 9058440, 10190745, 13587660, 16305192, 20381490, 27175320, 40762980, 81525960]

約数ペア:

[(1, 81525960), (2, 40762980), (3, 27175320), (4, 20381490), (5, 16305192), (6, 13587660), (8, 10190745), (9, 9058440), (10, 8152596), (12, 6793830), (15, 5435064), (18, 4529220), (19, 4290840), (20, 4076298), (24, 3396915), (27, 3019480), (29, 2811240), (30, 2717532), (36, 2264610), (38, 2145420), (40, 2038149), (45, 1811688), (54, 1509740), (57, 1430280), (58, 1405620), (60, 1358766), (72, 1132305), (76, 1072710), (87, 937080), (90, 905844), (95, 858168), (108, 754870), (114, 715140), (116, 702810), (120, 679383), (135, 603896), (137, 595080), (145, 562248), (152, 536355), (171, 476760), (174, 468540), (180, 452922), (190, 429084), (216, 377435), (228, 357570), (232, 351405), (261, 312360), (270, 301948), (274, 297540), (285, 286056), (290, 281124), (342, 238380), (348, 234270), (360, 226461), (380, 214542), (411, 198360), (435, 187416), (456, 178785), (513, 158920), (522, 156180), (540, 150974), (548, 148770), (551, 147960), (570, 143028), (580, 140562), (684, 119190), (685, 119016), (696, 117135), (760, 107271), (783, 104120), (822, 99180), (855, 95352), (870, 93708), (1026, 79460), (1044, 78090), (1080, 75487), (1096, 74385), (1102, 73980), (1140, 71514), (1160, 70281), (1233, 66120), (1305, 62472), (1368, 59595), (1370, 59508), (1566, 52060), (1644, 49590), (1653, 49320), (1710, 47676), (1740, 46854), (2052, 39730), (2055, 39672), (2088, 39045), (2204, 36990), (2280, 35757), (2466, 33060), (2565, 31784), (2603, 31320), (2610, 31236), (2740, 29754), (2755, 29592), (3132, 26030), (3288, 24795), (3306, 24660), (3420, 23838), (3480, 23427), (3699, 22040), (3915, 20824), (3973, 20520), (4104, 19865), (4110, 19836), (4408, 18495), (4932, 16530), (4959, 16440), (5130, 15892), (5206, 15660), (5220, 15618), (5480, 14877), (5510, 14796), (6165, 13224), (6264, 13015), (6612, 12330), (6840, 11919), (7398, 11020), (7809, 10440), (7830, 10412), (7946, 10260), (8220, 9918), (8265, 9864)]