21636720

素因数分解:

$2^4\times 3^6\times 5^1\times 7^1\times {\mathrm{53}}^1$

素因数の和:91

約数の個数: 280

約数和(自身を含む): 87824736

約数和(自身を除く): 66188016

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, 53, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 106, 108, 112, 120, 126, 135, 140, 144, 159, 162, 168, 180, 189, 210, 212, 216, 240, 243, 252, 265, 270, 280, 315, 318, 324, 336, 360, 371, 378, 405, 420, 424, 432, 477, 486, 504, 530, 540, 560, 567, 630, 636, 648, 720, 729, 742, 756, 795, 810, 840, 848, 945, 954, 972, 1008, 1060, 1080, 1113, 1134, 1215, 1260, 1272, 1296, 1431, 1458, 1484, 1512, 1590, 1620, 1680, 1701, 1855, 1890, 1908, 1944, 2120, 2160, 2226, 2268, 2385, 2430, 2520, 2544, 2835, 2862, 2916, 2968, 3024, 3180, 3240, 3339, 3402, 3645, 3710, 3780, 3816, 3888, 4240, 4293, 4452, 4536, 4770, 4860, 5040, 5103, 5565, 5670, 5724, 5832, 5936, 6360, 6480, 6678, 6804, 7155, 7290, 7420, 7560, 7632, 8505, 8586, 8904, 9072, 9540, 9720, 10017, 10206, 11130, 11340, 11448, 11664, 12720, 12879, 13356, 13608, 14310, 14580, 14840, 15120, 16695, 17010, 17172, 17808, 19080, 19440, 20034, 20412, 21465, 22260, 22680, 22896, 25515, 25758, 26712, 27216, 28620, 29160, 29680, 30051, 33390, 34020, 34344, 38160, 38637, 40068, 40824, 42930, 44520, 45360, 50085, 51030, 51516, 53424, 57240, 58320, 60102, 64395, 66780, 68040, 68688, 77274, 80136, 81648, 85860, 89040, 90153, 100170, 102060, 103032, 114480, 120204, 128790, 133560, 136080, 150255, 154548, 160272, 171720, 180306, 193185, 200340, 204120, 206064, 240408, 257580, 267120, 270459, 300510, 309096, 343440, 360612, 386370, 400680, 408240, 450765, 480816, 515160, 540918, 601020, 618192, 721224, 772740, 801360, 901530, 1030320, 1081836, 1202040, 1352295, 1442448, 1545480, 1803060, 2163672, 2404080, 2704590, 3090960, 3606120, 4327344, 5409180, 7212240, 10818360, 21636720]

約数ペア:

[(1, 21636720), (2, 10818360), (3, 7212240), (4, 5409180), (5, 4327344), (6, 3606120), (7, 3090960), (8, 2704590), (9, 2404080), (10, 2163672), (12, 1803060), (14, 1545480), (15, 1442448), (16, 1352295), (18, 1202040), (20, 1081836), (21, 1030320), (24, 901530), (27, 801360), (28, 772740), (30, 721224), (35, 618192), (36, 601020), (40, 540918), (42, 515160), (45, 480816), (48, 450765), (53, 408240), (54, 400680), (56, 386370), (60, 360612), (63, 343440), (70, 309096), (72, 300510), (80, 270459), (81, 267120), (84, 257580), (90, 240408), (105, 206064), (106, 204120), (108, 200340), (112, 193185), (120, 180306), (126, 171720), (135, 160272), (140, 154548), (144, 150255), (159, 136080), (162, 133560), (168, 128790), (180, 120204), (189, 114480), (210, 103032), (212, 102060), (216, 100170), (240, 90153), (243, 89040), (252, 85860), (265, 81648), (270, 80136), (280, 77274), (315, 68688), (318, 68040), (324, 66780), (336, 64395), (360, 60102), (371, 58320), (378, 57240), (405, 53424), (420, 51516), (424, 51030), (432, 50085), (477, 45360), (486, 44520), (504, 42930), (530, 40824), (540, 40068), (560, 38637), (567, 38160), (630, 34344), (636, 34020), (648, 33390), (720, 30051), (729, 29680), (742, 29160), (756, 28620), (795, 27216), (810, 26712), (840, 25758), (848, 25515), (945, 22896), (954, 22680), (972, 22260), (1008, 21465), (1060, 20412), (1080, 20034), (1113, 19440), (1134, 19080), (1215, 17808), (1260, 17172), (1272, 17010), (1296, 16695), (1431, 15120), (1458, 14840), (1484, 14580), (1512, 14310), (1590, 13608), (1620, 13356), (1680, 12879), (1701, 12720), (1855, 11664), (1890, 11448), (1908, 11340), (1944, 11130), (2120, 10206), (2160, 10017), (2226, 9720), (2268, 9540), (2385, 9072), (2430, 8904), (2520, 8586), (2544, 8505), (2835, 7632), (2862, 7560), (2916, 7420), (2968, 7290), (3024, 7155), (3180, 6804), (3240, 6678), (3339, 6480), (3402, 6360), (3645, 5936), (3710, 5832), (3780, 5724), (3816, 5670), (3888, 5565), (4240, 5103), (4293, 5040), (4452, 4860), (4536, 4770)]