20428047360

素因数分解:

$2^{10}\times 3^2\times 5^1\times 7^1\times {\mathrm{63331}}^1$

素因数の和:63369

約数の個数: 264

約数和(自身を含む): 80895736896

約数和(自身を除く): 60467689536

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 512, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1024, 1120, 1152, 1260, 1280, 1344, 1440, 1536, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2560, 2688, 2880, 3072, 3360, 3584, 3840, 4032, 4480, 4608, 5040, 5120, 5376, 5760, 6720, 7168, 7680, 8064, 8960, 9216, 10080, 10752, 11520, 13440, 15360, 16128, 17920, 20160, 21504, 23040, 26880, 32256, 35840, 40320, 46080, 53760, 63331, 64512, 80640, 107520, 126662, 161280, 189993, 253324, 316655, 322560, 379986, 443317, 506648, 569979, 633310, 759972, 886634, 949965, 1013296, 1139958, 1266620, 1329951, 1519944, 1773268, 1899930, 2026592, 2216585, 2279916, 2533240, 2659902, 2849895, 3039888, 3546536, 3799860, 3989853, 4053184, 4433170, 4559832, 5066480, 5319804, 5699790, 6079776, 6649755, 7093072, 7599720, 7979706, 8106368, 8866340, 9119664, 10132960, 10639608, 11399580, 12159552, 13299510, 14186144, 15199440, 15959412, 16212736, 17732680, 18239328, 19949265, 20265920, 21279216, 22799160, 24319104, 26599020, 28372288, 30398880, 31918824, 32425472, 35465360, 36478656, 39898530, 40531840, 42558432, 45598320, 48638208, 53198040, 56744576, 60797760, 63837648, 64850944, 70930720, 72957312, 79797060, 81063680, 85116864, 91196640, 97276416, 106396080, 113489152, 121595520, 127675296, 141861440, 145914624, 159594120, 162127360, 170233728, 182393280, 194552832, 212792160, 226978304, 243191040, 255350592, 283722880, 291829248, 319188240, 324254720, 340467456, 364786560, 425584320, 453956608, 486382080, 510701184, 567445760, 583658496, 638376480, 680934912, 729573120, 851168640, 972764160, 1021402368, 1134891520, 1276752960, 1361869824, 1459146240, 1702337280, 2042804736, 2269783040, 2553505920, 2918292480, 3404674560, 4085609472, 5107011840, 6809349120, 10214023680, 20428047360]

約数ペア:

[(1, 20428047360), (2, 10214023680), (3, 6809349120), (4, 5107011840), (5, 4085609472), (6, 3404674560), (7, 2918292480), (8, 2553505920), (9, 2269783040), (10, 2042804736), (12, 1702337280), (14, 1459146240), (15, 1361869824), (16, 1276752960), (18, 1134891520), (20, 1021402368), (21, 972764160), (24, 851168640), (28, 729573120), (30, 680934912), (32, 638376480), (35, 583658496), (36, 567445760), (40, 510701184), (42, 486382080), (45, 453956608), (48, 425584320), (56, 364786560), (60, 340467456), (63, 324254720), (64, 319188240), (70, 291829248), (72, 283722880), (80, 255350592), (84, 243191040), (90, 226978304), (96, 212792160), (105, 194552832), (112, 182393280), (120, 170233728), (126, 162127360), (128, 159594120), (140, 145914624), (144, 141861440), (160, 127675296), (168, 121595520), (180, 113489152), (192, 106396080), (210, 97276416), (224, 91196640), (240, 85116864), (252, 81063680), (256, 79797060), (280, 72957312), (288, 70930720), (315, 64850944), (320, 63837648), (336, 60797760), (360, 56744576), (384, 53198040), (420, 48638208), (448, 45598320), (480, 42558432), (504, 40531840), (512, 39898530), (560, 36478656), (576, 35465360), (630, 32425472), (640, 31918824), (672, 30398880), (720, 28372288), (768, 26599020), (840, 24319104), (896, 22799160), (960, 21279216), (1008, 20265920), (1024, 19949265), (1120, 18239328), (1152, 17732680), (1260, 16212736), (1280, 15959412), (1344, 15199440), (1440, 14186144), (1536, 13299510), (1680, 12159552), (1792, 11399580), (1920, 10639608), (2016, 10132960), (2240, 9119664), (2304, 8866340), (2520, 8106368), (2560, 7979706), (2688, 7599720), (2880, 7093072), (3072, 6649755), (3360, 6079776), (3584, 5699790), (3840, 5319804), (4032, 5066480), (4480, 4559832), (4608, 4433170), (5040, 4053184), (5120, 3989853), (5376, 3799860), (5760, 3546536), (6720, 3039888), (7168, 2849895), (7680, 2659902), (8064, 2533240), (8960, 2279916), (9216, 2216585), (10080, 2026592), (10752, 1899930), (11520, 1773268), (13440, 1519944), (15360, 1329951), (16128, 1266620), (17920, 1139958), (20160, 1013296), (21504, 949965), (23040, 886634), (26880, 759972), (32256, 633310), (35840, 569979), (40320, 506648), (46080, 443317), (53760, 379986), (63331, 322560), (64512, 316655), (80640, 253324), (107520, 189993), (126662, 161280)]