20805844920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{499}}^1\times {\mathrm{1013}}^1$

素因数の和:1547

約数の個数: 256

約数和(自身を含む): 73008000000

約数和(自身を除く): 52202155080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 343, 392, 420, 490, 499, 588, 686, 735, 840, 980, 998, 1013, 1029, 1176, 1372, 1470, 1497, 1715, 1960, 1996, 2026, 2058, 2495, 2744, 2940, 2994, 3039, 3430, 3493, 3992, 4052, 4116, 4990, 5065, 5145, 5880, 5988, 6078, 6860, 6986, 7091, 7485, 8104, 8232, 9980, 10130, 10290, 10479, 11976, 12156, 13720, 13972, 14182, 14970, 15195, 17465, 19960, 20260, 20580, 20958, 21273, 24312, 24451, 27944, 28364, 29940, 30390, 34930, 35455, 40520, 41160, 41916, 42546, 48902, 49637, 52395, 56728, 59880, 60780, 69860, 70910, 73353, 83832, 85092, 97804, 99274, 104790, 106365, 121560, 122255, 139720, 141820, 146706, 148911, 170184, 171157, 195608, 198548, 209580, 212730, 244510, 248185, 283640, 293412, 297822, 342314, 347459, 366765, 397096, 419160, 425460, 489020, 496370, 505487, 513471, 586824, 595644, 684628, 694918, 733530, 744555, 850920, 855785, 978040, 992740, 1010974, 1026942, 1042377, 1191288, 1369256, 1389836, 1467060, 1489110, 1516461, 1711570, 1737295, 1985480, 2021948, 2053884, 2084754, 2527435, 2567355, 2779672, 2934120, 2978220, 3032922, 3423140, 3474590, 3538409, 4043896, 4107768, 4169508, 5054870, 5134710, 5211885, 5956440, 6065844, 6846280, 6949180, 7076818, 7582305, 8339016, 10109740, 10269420, 10423770, 10615227, 12131688, 13898360, 14153636, 15164610, 17692045, 20219480, 20538840, 20847540, 21230454, 24768863, 28307272, 30329220, 35384090, 41695080, 42460908, 49537726, 53076135, 60658440, 70768180, 74306589, 84921816, 99075452, 106152270, 123844315, 141536360, 148613178, 173382041, 198150904, 212304540, 247688630, 297226356, 346764082, 371532945, 424609080, 495377260, 520146123, 594452712, 693528164, 743065890, 866910205, 990754520, 1040292246, 1387056328, 1486131780, 1733820410, 2080584492, 2600730615, 2972263560, 3467640820, 4161168984, 5201461230, 6935281640, 10402922460, 20805844920]

約数ペア:

[(1, 20805844920), (2, 10402922460), (3, 6935281640), (4, 5201461230), (5, 4161168984), (6, 3467640820), (7, 2972263560), (8, 2600730615), (10, 2080584492), (12, 1733820410), (14, 1486131780), (15, 1387056328), (20, 1040292246), (21, 990754520), (24, 866910205), (28, 743065890), (30, 693528164), (35, 594452712), (40, 520146123), (42, 495377260), (49, 424609080), (56, 371532945), (60, 346764082), (70, 297226356), (84, 247688630), (98, 212304540), (105, 198150904), (120, 173382041), (140, 148613178), (147, 141536360), (168, 123844315), (196, 106152270), (210, 99075452), (245, 84921816), (280, 74306589), (294, 70768180), (343, 60658440), (392, 53076135), (420, 49537726), (490, 42460908), (499, 41695080), (588, 35384090), (686, 30329220), (735, 28307272), (840, 24768863), (980, 21230454), (998, 20847540), (1013, 20538840), (1029, 20219480), (1176, 17692045), (1372, 15164610), (1470, 14153636), (1497, 13898360), (1715, 12131688), (1960, 10615227), (1996, 10423770), (2026, 10269420), (2058, 10109740), (2495, 8339016), (2744, 7582305), (2940, 7076818), (2994, 6949180), (3039, 6846280), (3430, 6065844), (3493, 5956440), (3992, 5211885), (4052, 5134710), (4116, 5054870), (4990, 4169508), (5065, 4107768), (5145, 4043896), (5880, 3538409), (5988, 3474590), (6078, 3423140), (6860, 3032922), (6986, 2978220), (7091, 2934120), (7485, 2779672), (8104, 2567355), (8232, 2527435), (9980, 2084754), (10130, 2053884), (10290, 2021948), (10479, 1985480), (11976, 1737295), (12156, 1711570), (13720, 1516461), (13972, 1489110), (14182, 1467060), (14970, 1389836), (15195, 1369256), (17465, 1191288), (19960, 1042377), (20260, 1026942), (20580, 1010974), (20958, 992740), (21273, 978040), (24312, 855785), (24451, 850920), (27944, 744555), (28364, 733530), (29940, 694918), (30390, 684628), (34930, 595644), (35455, 586824), (40520, 513471), (41160, 505487), (41916, 496370), (42546, 489020), (48902, 425460), (49637, 419160), (52395, 397096), (56728, 366765), (59880, 347459), (60780, 342314), (69860, 297822), (70910, 293412), (73353, 283640), (83832, 248185), (85092, 244510), (97804, 212730), (99274, 209580), (104790, 198548), (106365, 195608), (121560, 171157), (122255, 170184), (139720, 148911), (141820, 146706)]