20725271280

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{195817}}^1$

素因数の和:195853

約数の個数: 240

約数和(自身を含む): 83042497440

約数和(自身を除く): 62317226160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 168, 180, 189, 196, 210, 216, 240, 245, 252, 270, 280, 294, 315, 336, 360, 378, 392, 420, 432, 441, 490, 504, 540, 560, 588, 630, 720, 735, 756, 784, 840, 882, 945, 980, 1008, 1080, 1176, 1260, 1323, 1470, 1512, 1680, 1764, 1890, 1960, 2160, 2205, 2352, 2520, 2646, 2940, 3024, 3528, 3780, 3920, 4410, 5040, 5292, 5880, 6615, 7056, 7560, 8820, 10584, 11760, 13230, 15120, 17640, 21168, 26460, 35280, 52920, 105840, 195817, 391634, 587451, 783268, 979085, 1174902, 1370719, 1566536, 1762353, 1958170, 2349804, 2741438, 2937255, 3133072, 3524706, 3916340, 4112157, 4699608, 5287059, 5482876, 5874510, 6853595, 7049412, 7832680, 8224314, 8811765, 9399216, 9595033, 10574118, 10965752, 11749020, 12336471, 13707190, 14098824, 15665360, 16448628, 17623530, 19190066, 20560785, 21148236, 21931504, 23498040, 24672942, 26435295, 27414380, 28197648, 28785099, 32897256, 35247060, 37009413, 38380132, 41121570, 42296472, 46996080, 47975165, 49345884, 52870590, 54828760, 57570198, 61682355, 65794512, 70494120, 74018826, 76760264, 82243140, 84592944, 86355297, 95950330, 98691768, 105741180, 109657520, 115140396, 123364710, 140988240, 143925495, 148037652, 153520528, 164486280, 172710594, 185047065, 191900660, 197383536, 211482360, 230280792, 246729420, 259065891, 287850990, 296075304, 328972560, 345421188, 370094130, 383801320, 422964720, 431776485, 460561584, 493458840, 518131782, 575701980, 592150608, 690842376, 740188260, 767602640, 863552970, 986917680, 1036263564, 1151403960, 1295329455, 1381684752, 1480376520, 1727105940, 2072527128, 2302807920, 2590658910, 2960753040, 3454211880, 4145054256, 5181317820, 6908423760, 10362635640, 20725271280]

約数ペア:

[(1, 20725271280), (2, 10362635640), (3, 6908423760), (4, 5181317820), (5, 4145054256), (6, 3454211880), (7, 2960753040), (8, 2590658910), (9, 2302807920), (10, 2072527128), (12, 1727105940), (14, 1480376520), (15, 1381684752), (16, 1295329455), (18, 1151403960), (20, 1036263564), (21, 986917680), (24, 863552970), (27, 767602640), (28, 740188260), (30, 690842376), (35, 592150608), (36, 575701980), (40, 518131782), (42, 493458840), (45, 460561584), (48, 431776485), (49, 422964720), (54, 383801320), (56, 370094130), (60, 345421188), (63, 328972560), (70, 296075304), (72, 287850990), (80, 259065891), (84, 246729420), (90, 230280792), (98, 211482360), (105, 197383536), (108, 191900660), (112, 185047065), (120, 172710594), (126, 164486280), (135, 153520528), (140, 148037652), (144, 143925495), (147, 140988240), (168, 123364710), (180, 115140396), (189, 109657520), (196, 105741180), (210, 98691768), (216, 95950330), (240, 86355297), (245, 84592944), (252, 82243140), (270, 76760264), (280, 74018826), (294, 70494120), (315, 65794512), (336, 61682355), (360, 57570198), (378, 54828760), (392, 52870590), (420, 49345884), (432, 47975165), (441, 46996080), (490, 42296472), (504, 41121570), (540, 38380132), (560, 37009413), (588, 35247060), (630, 32897256), (720, 28785099), (735, 28197648), (756, 27414380), (784, 26435295), (840, 24672942), (882, 23498040), (945, 21931504), (980, 21148236), (1008, 20560785), (1080, 19190066), (1176, 17623530), (1260, 16448628), (1323, 15665360), (1470, 14098824), (1512, 13707190), (1680, 12336471), (1764, 11749020), (1890, 10965752), (1960, 10574118), (2160, 9595033), (2205, 9399216), (2352, 8811765), (2520, 8224314), (2646, 7832680), (2940, 7049412), (3024, 6853595), (3528, 5874510), (3780, 5482876), (3920, 5287059), (4410, 4699608), (5040, 4112157), (5292, 3916340), (5880, 3524706), (6615, 3133072), (7056, 2937255), (7560, 2741438), (8820, 2349804), (10584, 1958170), (11760, 1762353), (13230, 1566536), (15120, 1370719), (17640, 1174902), (21168, 979085), (26460, 783268), (35280, 587451), (52920, 391634), (105840, 195817)]