21144240

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:289

約数の個数: 200

約数和(自身を含む): 79401168

約数和(自身を除く): 58256928

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 104, 108, 117, 120, 130, 135, 144, 156, 162, 180, 195, 208, 216, 234, 240, 251, 260, 270, 312, 324, 351, 360, 390, 405, 432, 468, 502, 520, 540, 585, 624, 648, 702, 720, 753, 780, 810, 936, 1004, 1040, 1053, 1080, 1170, 1255, 1296, 1404, 1506, 1560, 1620, 1755, 1872, 2008, 2106, 2160, 2259, 2340, 2510, 2808, 3012, 3120, 3240, 3263, 3510, 3765, 4016, 4212, 4518, 4680, 5020, 5265, 5616, 6024, 6480, 6526, 6777, 7020, 7530, 8424, 9036, 9360, 9789, 10040, 10530, 11295, 12048, 13052, 13554, 14040, 15060, 16315, 16848, 18072, 19578, 20080, 20331, 21060, 22590, 26104, 27108, 28080, 29367, 30120, 32630, 33885, 36144, 39156, 40662, 42120, 45180, 48945, 52208, 54216, 58734, 60240, 65260, 67770, 78312, 81324, 84240, 88101, 90360, 97890, 101655, 108432, 117468, 130520, 135540, 146835, 156624, 162648, 176202, 180720, 195780, 203310, 234936, 261040, 264303, 271080, 293670, 325296, 352404, 391560, 406620, 440505, 469872, 528606, 542160, 587340, 704808, 783120, 813240, 881010, 1057212, 1174680, 1321515, 1409616, 1626480, 1762020, 2114424, 2349360, 2643030, 3524040, 4228848, 5286060, 7048080, 10572120, 21144240]

約数ペア:

[(1, 21144240), (2, 10572120), (3, 7048080), (4, 5286060), (5, 4228848), (6, 3524040), (8, 2643030), (9, 2349360), (10, 2114424), (12, 1762020), (13, 1626480), (15, 1409616), (16, 1321515), (18, 1174680), (20, 1057212), (24, 881010), (26, 813240), (27, 783120), (30, 704808), (36, 587340), (39, 542160), (40, 528606), (45, 469872), (48, 440505), (52, 406620), (54, 391560), (60, 352404), (65, 325296), (72, 293670), (78, 271080), (80, 264303), (81, 261040), (90, 234936), (104, 203310), (108, 195780), (117, 180720), (120, 176202), (130, 162648), (135, 156624), (144, 146835), (156, 135540), (162, 130520), (180, 117468), (195, 108432), (208, 101655), (216, 97890), (234, 90360), (240, 88101), (251, 84240), (260, 81324), (270, 78312), (312, 67770), (324, 65260), (351, 60240), (360, 58734), (390, 54216), (405, 52208), (432, 48945), (468, 45180), (502, 42120), (520, 40662), (540, 39156), (585, 36144), (624, 33885), (648, 32630), (702, 30120), (720, 29367), (753, 28080), (780, 27108), (810, 26104), (936, 22590), (1004, 21060), (1040, 20331), (1053, 20080), (1080, 19578), (1170, 18072), (1255, 16848), (1296, 16315), (1404, 15060), (1506, 14040), (1560, 13554), (1620, 13052), (1755, 12048), (1872, 11295), (2008, 10530), (2106, 10040), (2160, 9789), (2259, 9360), (2340, 9036), (2510, 8424), (2808, 7530), (3012, 7020), (3120, 6777), (3240, 6526), (3263, 6480), (3510, 6024), (3765, 5616), (4016, 5265), (4212, 5020), (4518, 4680)]