20247783840

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{461}}^1\times {\mathrm{3389}}^1$

素因数の和:3877

約数の個数: 240

約数和(自身を含む): 71633940840

約数和(自身を除く): 51386157000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 461, 480, 540, 648, 720, 810, 864, 922, 1080, 1296, 1383, 1440, 1620, 1844, 2160, 2305, 2592, 2766, 3240, 3389, 3688, 4149, 4320, 4610, 5532, 6480, 6778, 6915, 7376, 8298, 9220, 10167, 11064, 12447, 12960, 13556, 13830, 14752, 16596, 16945, 18440, 20334, 20745, 22128, 24894, 27112, 27660, 30501, 33192, 33890, 36880, 37341, 40668, 41490, 44256, 49788, 50835, 54224, 55320, 61002, 62235, 66384, 67780, 73760, 74682, 81336, 82980, 91503, 99576, 101670, 108448, 110640, 122004, 124470, 132768, 135560, 149364, 152505, 162672, 165960, 183006, 186705, 199152, 203340, 221280, 244008, 248940, 271120, 274509, 298728, 305010, 325344, 331920, 366012, 373410, 398304, 406680, 457515, 488016, 497880, 542240, 549018, 597456, 610020, 663840, 732024, 746820, 813360, 915030, 976032, 995760, 1098036, 1194912, 1220040, 1372545, 1464048, 1493640, 1562329, 1626720, 1830060, 1991520, 2196072, 2440080, 2745090, 2928096, 2987280, 3124658, 3660120, 4392144, 4686987, 4880160, 5490180, 5974560, 6249316, 7320240, 7811645, 8784288, 9373974, 10980360, 12498632, 14060961, 14640480, 15623290, 18747948, 21960720, 23434935, 24997264, 28121922, 31246580, 37495896, 42182883, 43921440, 46869870, 49994528, 56243844, 62493160, 70304805, 74991792, 84365766, 93739740, 112487688, 124986320, 126548649, 140609610, 149983584, 168731532, 187479480, 210914415, 224975376, 249972640, 253097298, 281219220, 337463064, 374958960, 421828830, 449950752, 506194596, 562438440, 632743245, 674926128, 749917920, 843657660, 1012389192, 1124876880, 1265486490, 1349852256, 1687315320, 2024778384, 2249753760, 2530972980, 3374630640, 4049556768, 5061945960, 6749261280, 10123891920, 20247783840]

約数ペア:

[(1, 20247783840), (2, 10123891920), (3, 6749261280), (4, 5061945960), (5, 4049556768), (6, 3374630640), (8, 2530972980), (9, 2249753760), (10, 2024778384), (12, 1687315320), (15, 1349852256), (16, 1265486490), (18, 1124876880), (20, 1012389192), (24, 843657660), (27, 749917920), (30, 674926128), (32, 632743245), (36, 562438440), (40, 506194596), (45, 449950752), (48, 421828830), (54, 374958960), (60, 337463064), (72, 281219220), (80, 253097298), (81, 249972640), (90, 224975376), (96, 210914415), (108, 187479480), (120, 168731532), (135, 149983584), (144, 140609610), (160, 126548649), (162, 124986320), (180, 112487688), (216, 93739740), (240, 84365766), (270, 74991792), (288, 70304805), (324, 62493160), (360, 56243844), (405, 49994528), (432, 46869870), (461, 43921440), (480, 42182883), (540, 37495896), (648, 31246580), (720, 28121922), (810, 24997264), (864, 23434935), (922, 21960720), (1080, 18747948), (1296, 15623290), (1383, 14640480), (1440, 14060961), (1620, 12498632), (1844, 10980360), (2160, 9373974), (2305, 8784288), (2592, 7811645), (2766, 7320240), (3240, 6249316), (3389, 5974560), (3688, 5490180), (4149, 4880160), (4320, 4686987), (4610, 4392144), (5532, 3660120), (6480, 3124658), (6778, 2987280), (6915, 2928096), (7376, 2745090), (8298, 2440080), (9220, 2196072), (10167, 1991520), (11064, 1830060), (12447, 1626720), (12960, 1562329), (13556, 1493640), (13830, 1464048), (14752, 1372545), (16596, 1220040), (16945, 1194912), (18440, 1098036), (20334, 995760), (20745, 976032), (22128, 915030), (24894, 813360), (27112, 746820), (27660, 732024), (30501, 663840), (33192, 610020), (33890, 597456), (36880, 549018), (37341, 542240), (40668, 497880), (41490, 488016), (44256, 457515), (49788, 406680), (50835, 398304), (54224, 373410), (55320, 366012), (61002, 331920), (62235, 325344), (66384, 305010), (67780, 298728), (73760, 274509), (74682, 271120), (81336, 248940), (82980, 244008), (91503, 221280), (99576, 203340), (101670, 199152), (108448, 186705), (110640, 183006), (122004, 165960), (124470, 162672), (132768, 152505), (135560, 149364)]