21080590960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:313

約数の個数: 320

約数和(自身を含む): 59028971904

約数和(自身を除く): 37948380944

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 97, 104, 110, 121, 130, 143, 157, 176, 194, 208, 220, 242, 260, 286, 314, 388, 440, 484, 485, 520, 572, 605, 628, 715, 776, 785, 880, 968, 970, 1040, 1067, 1144, 1210, 1256, 1261, 1331, 1430, 1552, 1570, 1573, 1727, 1936, 1940, 2041, 2134, 2288, 2420, 2512, 2522, 2662, 2860, 3140, 3146, 3454, 3880, 4082, 4268, 4840, 5044, 5324, 5335, 5720, 6280, 6292, 6305, 6655, 6908, 7760, 7865, 8164, 8536, 8635, 9680, 10088, 10205, 10648, 10670, 11440, 11737, 12560, 12584, 12610, 13310, 13816, 13871, 15229, 15730, 16328, 17072, 17270, 17303, 18997, 20176, 20410, 21296, 21340, 22451, 23474, 25168, 25220, 26620, 27632, 27742, 30458, 31460, 32656, 34540, 34606, 37994, 40820, 42680, 44902, 46948, 50440, 53240, 55484, 58685, 60916, 62920, 69080, 69212, 69355, 75988, 76145, 81640, 85360, 86515, 89804, 93896, 94985, 100880, 106480, 110968, 112255, 117370, 121832, 125840, 129107, 138160, 138424, 138710, 151976, 152290, 152581, 163280, 167519, 173030, 179608, 187792, 189970, 197977, 208967, 221936, 224510, 234740, 243664, 246961, 258214, 276848, 277420, 303952, 304580, 305162, 335038, 346060, 359216, 379940, 395954, 417934, 449020, 469480, 493922, 516428, 554840, 609160, 610324, 645535, 670076, 692120, 759880, 762905, 791908, 835868, 837595, 898040, 938960, 987844, 989885, 1032856, 1044835, 1109680, 1218320, 1220648, 1234805, 1291070, 1340152, 1384240, 1519760, 1525810, 1583816, 1671736, 1675190, 1678391, 1796080, 1842709, 1975688, 1979770, 2065712, 2089670, 2177747, 2441296, 2469610, 2582140, 2680304, 2716571, 3051620, 3167632, 3343472, 3350380, 3356782, 3685418, 3951376, 3959540, 4179340, 4355494, 4939220, 5164280, 5433142, 6103240, 6700760, 6713564, 7370836, 7919080, 8358680, 8391955, 8710988, 9213545, 9878440, 10328560, 10866284, 10888735, 12206480, 13401520, 13427128, 13582855, 14741672, 15838160, 16717360, 16783910, 17421976, 18427090, 19756880, 20269799, 21732568, 21777470, 23955217, 26854256, 27165710, 29483344, 33567820, 34843952, 36854180, 40539598, 43465136, 43554940, 47910434, 54331420, 67135640, 73708360, 81079196, 87109880, 95820868, 101348995, 108662840, 119776085, 134271280, 147416720, 162158392, 174219760, 191641736, 202697990, 217325680, 239552170, 263507387, 324316784, 383283472, 405395980, 479104340, 527014774, 810791960, 958208680, 1054029548, 1317536935, 1621583920, 1916417360, 2108059096, 2635073870, 4216118192, 5270147740, 10540295480, 21080590960]

約数ペア:

[(1, 21080590960), (2, 10540295480), (4, 5270147740), (5, 4216118192), (8, 2635073870), (10, 2108059096), (11, 1916417360), (13, 1621583920), (16, 1317536935), (20, 1054029548), (22, 958208680), (26, 810791960), (40, 527014774), (44, 479104340), (52, 405395980), (55, 383283472), (65, 324316784), (80, 263507387), (88, 239552170), (97, 217325680), (104, 202697990), (110, 191641736), (121, 174219760), (130, 162158392), (143, 147416720), (157, 134271280), (176, 119776085), (194, 108662840), (208, 101348995), (220, 95820868), (242, 87109880), (260, 81079196), (286, 73708360), (314, 67135640), (388, 54331420), (440, 47910434), (484, 43554940), (485, 43465136), (520, 40539598), (572, 36854180), (605, 34843952), (628, 33567820), (715, 29483344), (776, 27165710), (785, 26854256), (880, 23955217), (968, 21777470), (970, 21732568), (1040, 20269799), (1067, 19756880), (1144, 18427090), (1210, 17421976), (1256, 16783910), (1261, 16717360), (1331, 15838160), (1430, 14741672), (1552, 13582855), (1570, 13427128), (1573, 13401520), (1727, 12206480), (1936, 10888735), (1940, 10866284), (2041, 10328560), (2134, 9878440), (2288, 9213545), (2420, 8710988), (2512, 8391955), (2522, 8358680), (2662, 7919080), (2860, 7370836), (3140, 6713564), (3146, 6700760), (3454, 6103240), (3880, 5433142), (4082, 5164280), (4268, 4939220), (4840, 4355494), (5044, 4179340), (5324, 3959540), (5335, 3951376), (5720, 3685418), (6280, 3356782), (6292, 3350380), (6305, 3343472), (6655, 3167632), (6908, 3051620), (7760, 2716571), (7865, 2680304), (8164, 2582140), (8536, 2469610), (8635, 2441296), (9680, 2177747), (10088, 2089670), (10205, 2065712), (10648, 1979770), (10670, 1975688), (11440, 1842709), (11737, 1796080), (12560, 1678391), (12584, 1675190), (12610, 1671736), (13310, 1583816), (13816, 1525810), (13871, 1519760), (15229, 1384240), (15730, 1340152), (16328, 1291070), (17072, 1234805), (17270, 1220648), (17303, 1218320), (18997, 1109680), (20176, 1044835), (20410, 1032856), (21296, 989885), (21340, 987844), (22451, 938960), (23474, 898040), (25168, 837595), (25220, 835868), (26620, 791908), (27632, 762905), (27742, 759880), (30458, 692120), (31460, 670076), (32656, 645535), (34540, 610324), (34606, 609160), (37994, 554840), (40820, 516428), (42680, 493922), (44902, 469480), (46948, 449020), (50440, 417934), (53240, 395954), (55484, 379940), (58685, 359216), (60916, 346060), (62920, 335038), (69080, 305162), (69212, 304580), (69355, 303952), (75988, 277420), (76145, 276848), (81640, 258214), (85360, 246961), (86515, 243664), (89804, 234740), (93896, 224510), (94985, 221936), (100880, 208967), (106480, 197977), (110968, 189970), (112255, 187792), (117370, 179608), (121832, 173030), (125840, 167519), (129107, 163280), (138160, 152581), (138424, 152290), (138710, 151976)]