20884076720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{241}}^1\times {\mathrm{859}}^1$

素因数の和:1223

約数の個数: 160

約数和(自身を含む): 53110559040

約数和(自身を除く): 32226482320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 241, 260, 388, 482, 485, 520, 776, 859, 964, 970, 1040, 1205, 1261, 1552, 1718, 1928, 1940, 2410, 2522, 3133, 3436, 3856, 3880, 4295, 4820, 5044, 6266, 6305, 6872, 7760, 8590, 9640, 10088, 11167, 12532, 12610, 13744, 15665, 17180, 19280, 20176, 22334, 23377, 25064, 25220, 31330, 34360, 44668, 46754, 50128, 50440, 55835, 62660, 68720, 83323, 89336, 93508, 100880, 111670, 116885, 125320, 166646, 178672, 187016, 207019, 223340, 233770, 250640, 303901, 333292, 374032, 414038, 416615, 446680, 467540, 607802, 666584, 828076, 833230, 893360, 935080, 1035095, 1083199, 1215604, 1333168, 1519505, 1656152, 1666460, 1870160, 2070190, 2166398, 2431208, 2691247, 3039010, 3312304, 3332920, 4140380, 4332796, 4862416, 5382494, 5415995, 6078020, 6665840, 8280760, 8665592, 10764988, 10831990, 12156040, 13456235, 16561520, 17331184, 20080843, 21529976, 21663980, 24312080, 26912470, 40161686, 43059952, 43327960, 53824940, 80323372, 86655920, 100404215, 107649880, 160646744, 200808430, 215299760, 261050959, 321293488, 401616860, 522101918, 803233720, 1044203836, 1305254795, 1606467440, 2088407672, 2610509590, 4176815344, 5221019180, 10442038360, 20884076720]

約数ペア:

[(1, 20884076720), (2, 10442038360), (4, 5221019180), (5, 4176815344), (8, 2610509590), (10, 2088407672), (13, 1606467440), (16, 1305254795), (20, 1044203836), (26, 803233720), (40, 522101918), (52, 401616860), (65, 321293488), (80, 261050959), (97, 215299760), (104, 200808430), (130, 160646744), (194, 107649880), (208, 100404215), (241, 86655920), (260, 80323372), (388, 53824940), (482, 43327960), (485, 43059952), (520, 40161686), (776, 26912470), (859, 24312080), (964, 21663980), (970, 21529976), (1040, 20080843), (1205, 17331184), (1261, 16561520), (1552, 13456235), (1718, 12156040), (1928, 10831990), (1940, 10764988), (2410, 8665592), (2522, 8280760), (3133, 6665840), (3436, 6078020), (3856, 5415995), (3880, 5382494), (4295, 4862416), (4820, 4332796), (5044, 4140380), (6266, 3332920), (6305, 3312304), (6872, 3039010), (7760, 2691247), (8590, 2431208), (9640, 2166398), (10088, 2070190), (11167, 1870160), (12532, 1666460), (12610, 1656152), (13744, 1519505), (15665, 1333168), (17180, 1215604), (19280, 1083199), (20176, 1035095), (22334, 935080), (23377, 893360), (25064, 833230), (25220, 828076), (31330, 666584), (34360, 607802), (44668, 467540), (46754, 446680), (50128, 416615), (50440, 414038), (55835, 374032), (62660, 333292), (68720, 303901), (83323, 250640), (89336, 233770), (93508, 223340), (100880, 207019), (111670, 187016), (116885, 178672), (125320, 166646)]