19918160640

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{247001}}^1$

素因数の和:247035

約数の個数: 216

約数和(自身を含む): 78760045728

約数和(自身を除く): 58841885088

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, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2688, 2880, 3360, 3840, 4032, 4480, 5040, 5376, 5760, 6720, 8064, 8960, 10080, 11520, 13440, 16128, 20160, 26880, 40320, 80640, 247001, 494002, 741003, 988004, 1235005, 1482006, 1729007, 1976008, 2223009, 2470010, 2964012, 3458014, 3705015, 3952016, 4446018, 4940020, 5187021, 5928024, 6916028, 7410030, 7904032, 8645035, 8892036, 9880040, 10374042, 11115045, 11856048, 13832056, 14820060, 15561063, 15808064, 17290070, 17784072, 19760080, 20748084, 22230090, 23712096, 25935105, 27664112, 29640120, 31122126, 31616128, 34580140, 35568144, 39520160, 41496168, 44460180, 47424192, 51870210, 55328224, 59280240, 62244252, 63232256, 69160280, 71136288, 77805315, 79040320, 82992336, 88920360, 94848384, 103740420, 110656448, 118560480, 124488504, 138320560, 142272576, 155610630, 158080640, 165984672, 177840720, 189696768, 207480840, 221312896, 237120960, 248977008, 276641120, 284545152, 311221260, 316161280, 331969344, 355681440, 414961680, 442625792, 474241920, 497954016, 553282240, 569090304, 622442520, 663938688, 711362880, 829923360, 948483840, 995908032, 1106564480, 1244885040, 1327877376, 1422725760, 1659846720, 1991816064, 2213128960, 2489770080, 2845451520, 3319693440, 3983632128, 4979540160, 6639386880, 9959080320, 19918160640]

約数ペア:

[(1, 19918160640), (2, 9959080320), (3, 6639386880), (4, 4979540160), (5, 3983632128), (6, 3319693440), (7, 2845451520), (8, 2489770080), (9, 2213128960), (10, 1991816064), (12, 1659846720), (14, 1422725760), (15, 1327877376), (16, 1244885040), (18, 1106564480), (20, 995908032), (21, 948483840), (24, 829923360), (28, 711362880), (30, 663938688), (32, 622442520), (35, 569090304), (36, 553282240), (40, 497954016), (42, 474241920), (45, 442625792), (48, 414961680), (56, 355681440), (60, 331969344), (63, 316161280), (64, 311221260), (70, 284545152), (72, 276641120), (80, 248977008), (84, 237120960), (90, 221312896), (96, 207480840), (105, 189696768), (112, 177840720), (120, 165984672), (126, 158080640), (128, 155610630), (140, 142272576), (144, 138320560), (160, 124488504), (168, 118560480), (180, 110656448), (192, 103740420), (210, 94848384), (224, 88920360), (240, 82992336), (252, 79040320), (256, 77805315), (280, 71136288), (288, 69160280), (315, 63232256), (320, 62244252), (336, 59280240), (360, 55328224), (384, 51870210), (420, 47424192), (448, 44460180), (480, 41496168), (504, 39520160), (560, 35568144), (576, 34580140), (630, 31616128), (640, 31122126), (672, 29640120), (720, 27664112), (768, 25935105), (840, 23712096), (896, 22230090), (960, 20748084), (1008, 19760080), (1120, 17784072), (1152, 17290070), (1260, 15808064), (1280, 15561063), (1344, 14820060), (1440, 13832056), (1680, 11856048), (1792, 11115045), (1920, 10374042), (2016, 9880040), (2240, 8892036), (2304, 8645035), (2520, 7904032), (2688, 7410030), (2880, 6916028), (3360, 5928024), (3840, 5187021), (4032, 4940020), (4480, 4446018), (5040, 3952016), (5376, 3705015), (5760, 3458014), (6720, 2964012), (8064, 2470010), (8960, 2223009), (10080, 1976008), (11520, 1729007), (13440, 1482006), (16128, 1235005), (20160, 988004), (26880, 741003), (40320, 494002), (80640, 247001)]