78811920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:171

約数の個数: 320

約数和(自身を含む): 308551680

約数和(自身を除く): 229739760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 31, 33, 36, 40, 44, 45, 48, 54, 55, 60, 62, 66, 72, 80, 88, 90, 93, 99, 107, 108, 110, 120, 124, 132, 135, 144, 155, 165, 176, 180, 186, 198, 214, 216, 220, 240, 248, 264, 270, 279, 297, 310, 321, 330, 341, 360, 372, 396, 428, 432, 440, 465, 495, 496, 528, 535, 540, 558, 594, 620, 642, 660, 682, 720, 744, 792, 837, 856, 880, 930, 963, 990, 1023, 1070, 1080, 1116, 1177, 1188, 1240, 1284, 1320, 1364, 1395, 1485, 1488, 1584, 1605, 1674, 1705, 1712, 1860, 1926, 1980, 2046, 2140, 2160, 2232, 2354, 2376, 2480, 2568, 2640, 2728, 2790, 2889, 2970, 3069, 3210, 3317, 3348, 3410, 3531, 3720, 3852, 3960, 4092, 4185, 4280, 4464, 4708, 4752, 4815, 5115, 5136, 5456, 5580, 5778, 5885, 5940, 6138, 6420, 6634, 6696, 6820, 7062, 7440, 7704, 7920, 8184, 8370, 8560, 9207, 9416, 9630, 9951, 10230, 10593, 11160, 11556, 11770, 11880, 12276, 12840, 13268, 13392, 13640, 14124, 14445, 15345, 15408, 16368, 16585, 16740, 17655, 18414, 18832, 19260, 19902, 20460, 21186, 22320, 23112, 23540, 23760, 24552, 25680, 26536, 27280, 28248, 28890, 29853, 30690, 31779, 33170, 33480, 35310, 36487, 36828, 38520, 39804, 40920, 42372, 46035, 46224, 47080, 49104, 49755, 52965, 53072, 56496, 57780, 59706, 61380, 63558, 66340, 66960, 70620, 72974, 73656, 77040, 79608, 81840, 84744, 89559, 92070, 94160, 99510, 105930, 109461, 115560, 119412, 122760, 127116, 132680, 141240, 145948, 147312, 149265, 158895, 159216, 169488, 179118, 182435, 184140, 199020, 211860, 218922, 231120, 238824, 245520, 254232, 265360, 282480, 291896, 298530, 317790, 328383, 358236, 364870, 368280, 398040, 423720, 437844, 447795, 477648, 508464, 547305, 583792, 597060, 635580, 656766, 716472, 729740, 736560, 796080, 847440, 875688, 895590, 985149, 1094610, 1194120, 1271160, 1313532, 1432944, 1459480, 1641915, 1751376, 1791180, 1970298, 2189220, 2388240, 2542320, 2627064, 2918960, 3283830, 3582360, 3940596, 4378440, 4925745, 5254128, 6567660, 7164720, 7881192, 8756880, 9851490, 13135320, 15762384, 19702980, 26270640, 39405960, 78811920]

約数ペア:

[(1, 78811920), (2, 39405960), (3, 26270640), (4, 19702980), (5, 15762384), (6, 13135320), (8, 9851490), (9, 8756880), (10, 7881192), (11, 7164720), (12, 6567660), (15, 5254128), (16, 4925745), (18, 4378440), (20, 3940596), (22, 3582360), (24, 3283830), (27, 2918960), (30, 2627064), (31, 2542320), (33, 2388240), (36, 2189220), (40, 1970298), (44, 1791180), (45, 1751376), (48, 1641915), (54, 1459480), (55, 1432944), (60, 1313532), (62, 1271160), (66, 1194120), (72, 1094610), (80, 985149), (88, 895590), (90, 875688), (93, 847440), (99, 796080), (107, 736560), (108, 729740), (110, 716472), (120, 656766), (124, 635580), (132, 597060), (135, 583792), (144, 547305), (155, 508464), (165, 477648), (176, 447795), (180, 437844), (186, 423720), (198, 398040), (214, 368280), (216, 364870), (220, 358236), (240, 328383), (248, 317790), (264, 298530), (270, 291896), (279, 282480), (297, 265360), (310, 254232), (321, 245520), (330, 238824), (341, 231120), (360, 218922), (372, 211860), (396, 199020), (428, 184140), (432, 182435), (440, 179118), (465, 169488), (495, 159216), (496, 158895), (528, 149265), (535, 147312), (540, 145948), (558, 141240), (594, 132680), (620, 127116), (642, 122760), (660, 119412), (682, 115560), (720, 109461), (744, 105930), (792, 99510), (837, 94160), (856, 92070), (880, 89559), (930, 84744), (963, 81840), (990, 79608), (1023, 77040), (1070, 73656), (1080, 72974), (1116, 70620), (1177, 66960), (1188, 66340), (1240, 63558), (1284, 61380), (1320, 59706), (1364, 57780), (1395, 56496), (1485, 53072), (1488, 52965), (1584, 49755), (1605, 49104), (1674, 47080), (1705, 46224), (1712, 46035), (1860, 42372), (1926, 40920), (1980, 39804), (2046, 38520), (2140, 36828), (2160, 36487), (2232, 35310), (2354, 33480), (2376, 33170), (2480, 31779), (2568, 30690), (2640, 29853), (2728, 28890), (2790, 28248), (2889, 27280), (2970, 26536), (3069, 25680), (3210, 24552), (3317, 23760), (3348, 23540), (3410, 23112), (3531, 22320), (3720, 21186), (3852, 20460), (3960, 19902), (4092, 19260), (4185, 18832), (4280, 18414), (4464, 17655), (4708, 16740), (4752, 16585), (4815, 16368), (5115, 15408), (5136, 15345), (5456, 14445), (5580, 14124), (5778, 13640), (5885, 13392), (5940, 13268), (6138, 12840), (6420, 12276), (6634, 11880), (6696, 11770), (6820, 11556), (7062, 11160), (7440, 10593), (7704, 10230), (7920, 9951), (8184, 9630), (8370, 9416), (8560, 9207)]