20891854800

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{62401}}^1$

素因数の和:62459

約数の個数: 240

約数和(自身を含む): 76759452160

約数和(自身を除く): 55867597360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 31, 36, 40, 45, 48, 50, 54, 60, 62, 72, 75, 80, 90, 93, 100, 108, 120, 124, 135, 144, 150, 155, 180, 186, 200, 216, 225, 240, 248, 270, 279, 300, 310, 360, 372, 400, 432, 450, 465, 496, 540, 558, 600, 620, 675, 720, 744, 775, 837, 900, 930, 1080, 1116, 1200, 1240, 1350, 1395, 1488, 1550, 1674, 1800, 1860, 2160, 2232, 2325, 2480, 2700, 2790, 3100, 3348, 3600, 3720, 4185, 4464, 4650, 5400, 5580, 6200, 6696, 6975, 7440, 8370, 9300, 10800, 11160, 12400, 13392, 13950, 16740, 18600, 20925, 22320, 27900, 33480, 37200, 41850, 55800, 62401, 66960, 83700, 111600, 124802, 167400, 187203, 249604, 312005, 334800, 374406, 499208, 561609, 624010, 748812, 936015, 998416, 1123218, 1248020, 1497624, 1560025, 1684827, 1872030, 1934431, 2246436, 2496040, 2808045, 2995248, 3120050, 3369654, 3744060, 3868862, 4492872, 4680075, 4992080, 5616090, 5803293, 6240100, 6739308, 7488120, 7737724, 8424135, 8985744, 9360150, 9672155, 11232180, 11606586, 12480200, 13478616, 14040225, 14976240, 15475448, 16848270, 17409879, 18720300, 19344310, 22464360, 23213172, 24960400, 26957232, 28080450, 29016465, 30950896, 33696540, 34819758, 37440600, 38688620, 42120675, 44928720, 46426344, 48360775, 52229637, 56160900, 58032930, 67393080, 69639516, 74881200, 77377240, 84241350, 87049395, 92852688, 96721550, 104459274, 112321800, 116065860, 134786160, 139279032, 145082325, 154754480, 168482700, 174098790, 193443100, 208918548, 224643600, 232131720, 261148185, 278558064, 290164650, 336965400, 348197580, 386886200, 417837096, 435246975, 464263440, 522296370, 580329300, 673930800, 696395160, 773772400, 835674192, 870493950, 1044592740, 1160658600, 1305740925, 1392790320, 1740987900, 2089185480, 2321317200, 2611481850, 3481975800, 4178370960, 5222963700, 6963951600, 10445927400, 20891854800]

約数ペア:

[(1, 20891854800), (2, 10445927400), (3, 6963951600), (4, 5222963700), (5, 4178370960), (6, 3481975800), (8, 2611481850), (9, 2321317200), (10, 2089185480), (12, 1740987900), (15, 1392790320), (16, 1305740925), (18, 1160658600), (20, 1044592740), (24, 870493950), (25, 835674192), (27, 773772400), (30, 696395160), (31, 673930800), (36, 580329300), (40, 522296370), (45, 464263440), (48, 435246975), (50, 417837096), (54, 386886200), (60, 348197580), (62, 336965400), (72, 290164650), (75, 278558064), (80, 261148185), (90, 232131720), (93, 224643600), (100, 208918548), (108, 193443100), (120, 174098790), (124, 168482700), (135, 154754480), (144, 145082325), (150, 139279032), (155, 134786160), (180, 116065860), (186, 112321800), (200, 104459274), (216, 96721550), (225, 92852688), (240, 87049395), (248, 84241350), (270, 77377240), (279, 74881200), (300, 69639516), (310, 67393080), (360, 58032930), (372, 56160900), (400, 52229637), (432, 48360775), (450, 46426344), (465, 44928720), (496, 42120675), (540, 38688620), (558, 37440600), (600, 34819758), (620, 33696540), (675, 30950896), (720, 29016465), (744, 28080450), (775, 26957232), (837, 24960400), (900, 23213172), (930, 22464360), (1080, 19344310), (1116, 18720300), (1200, 17409879), (1240, 16848270), (1350, 15475448), (1395, 14976240), (1488, 14040225), (1550, 13478616), (1674, 12480200), (1800, 11606586), (1860, 11232180), (2160, 9672155), (2232, 9360150), (2325, 8985744), (2480, 8424135), (2700, 7737724), (2790, 7488120), (3100, 6739308), (3348, 6240100), (3600, 5803293), (3720, 5616090), (4185, 4992080), (4464, 4680075), (4650, 4492872), (5400, 3868862), (5580, 3744060), (6200, 3369654), (6696, 3120050), (6975, 2995248), (7440, 2808045), (8370, 2496040), (9300, 2246436), (10800, 1934431), (11160, 1872030), (12400, 1684827), (13392, 1560025), (13950, 1497624), (16740, 1248020), (18600, 1123218), (20925, 998416), (22320, 936015), (27900, 748812), (33480, 624010), (37200, 561609), (41850, 499208), (55800, 374406), (62401, 334800), (66960, 312005), (83700, 249604), (111600, 187203), (124802, 167400)]