20921493600

素因数分解:

$2^5\times 3^2\times 5^2\times 7^1\times {\mathrm{415109}}^1$

素因数の和:415142

約数の個数: 216

約数和(自身を含む): 84313822320

約数和(自身を除く): 63392328720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 96, 100, 105, 112, 120, 126, 140, 144, 150, 160, 168, 175, 180, 200, 210, 224, 225, 240, 252, 280, 288, 300, 315, 336, 350, 360, 400, 420, 450, 480, 504, 525, 560, 600, 630, 672, 700, 720, 800, 840, 900, 1008, 1050, 1120, 1200, 1260, 1400, 1440, 1575, 1680, 1800, 2016, 2100, 2400, 2520, 2800, 3150, 3360, 3600, 4200, 5040, 5600, 6300, 7200, 8400, 10080, 12600, 16800, 25200, 50400, 415109, 830218, 1245327, 1660436, 2075545, 2490654, 2905763, 3320872, 3735981, 4151090, 4981308, 5811526, 6226635, 6641744, 7471962, 8302180, 8717289, 9962616, 10377725, 11623052, 12453270, 13283488, 14528815, 14943924, 16604360, 17434578, 18679905, 19925232, 20755450, 23246104, 24906540, 26151867, 29057630, 29887848, 31133175, 33208720, 34869156, 37359810, 39850464, 41510900, 43586445, 46492208, 49813080, 52303734, 58115260, 59775696, 62266350, 66417440, 69738312, 72644075, 74719620, 83021800, 87172890, 92984416, 93399525, 99626160, 104607468, 116230520, 119551392, 124532700, 130759335, 139476624, 145288150, 149439240, 166043600, 174345780, 186799050, 199252320, 209214936, 217932225, 232461040, 249065400, 261518670, 278953248, 290576300, 298878480, 332087200, 348691560, 373598100, 418429872, 435864450, 464922080, 498130800, 523037340, 581152600, 597756960, 653796675, 697383120, 747196200, 836859744, 871728900, 996261600, 1046074680, 1162305200, 1307593350, 1394766240, 1494392400, 1743457800, 2092149360, 2324610400, 2615186700, 2988784800, 3486915600, 4184298720, 5230373400, 6973831200, 10460746800, 20921493600]

約数ペア:

[(1, 20921493600), (2, 10460746800), (3, 6973831200), (4, 5230373400), (5, 4184298720), (6, 3486915600), (7, 2988784800), (8, 2615186700), (9, 2324610400), (10, 2092149360), (12, 1743457800), (14, 1494392400), (15, 1394766240), (16, 1307593350), (18, 1162305200), (20, 1046074680), (21, 996261600), (24, 871728900), (25, 836859744), (28, 747196200), (30, 697383120), (32, 653796675), (35, 597756960), (36, 581152600), (40, 523037340), (42, 498130800), (45, 464922080), (48, 435864450), (50, 418429872), (56, 373598100), (60, 348691560), (63, 332087200), (70, 298878480), (72, 290576300), (75, 278953248), (80, 261518670), (84, 249065400), (90, 232461040), (96, 217932225), (100, 209214936), (105, 199252320), (112, 186799050), (120, 174345780), (126, 166043600), (140, 149439240), (144, 145288150), (150, 139476624), (160, 130759335), (168, 124532700), (175, 119551392), (180, 116230520), (200, 104607468), (210, 99626160), (224, 93399525), (225, 92984416), (240, 87172890), (252, 83021800), (280, 74719620), (288, 72644075), (300, 69738312), (315, 66417440), (336, 62266350), (350, 59775696), (360, 58115260), (400, 52303734), (420, 49813080), (450, 46492208), (480, 43586445), (504, 41510900), (525, 39850464), (560, 37359810), (600, 34869156), (630, 33208720), (672, 31133175), (700, 29887848), (720, 29057630), (800, 26151867), (840, 24906540), (900, 23246104), (1008, 20755450), (1050, 19925232), (1120, 18679905), (1200, 17434578), (1260, 16604360), (1400, 14943924), (1440, 14528815), (1575, 13283488), (1680, 12453270), (1800, 11623052), (2016, 10377725), (2100, 9962616), (2400, 8717289), (2520, 8302180), (2800, 7471962), (3150, 6641744), (3360, 6226635), (3600, 5811526), (4200, 4981308), (5040, 4151090), (5600, 3735981), (6300, 3320872), (7200, 2905763), (8400, 2490654), (10080, 2075545), (12600, 1660436), (16800, 1245327), (25200, 830218), (50400, 415109)]