21727440

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{479}}^1$

素因数の和:511

約数の個数: 200

約数和(自身を含む): 86423040

約数和(自身を除く): 64695600

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, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 324, 336, 360, 378, 405, 420, 432, 479, 504, 540, 560, 567, 630, 648, 720, 756, 810, 840, 945, 958, 1008, 1080, 1134, 1260, 1296, 1437, 1512, 1620, 1680, 1890, 1916, 2160, 2268, 2395, 2520, 2835, 2874, 3024, 3240, 3353, 3780, 3832, 4311, 4536, 4790, 5040, 5670, 5748, 6480, 6706, 7185, 7560, 7664, 8622, 9072, 9580, 10059, 11340, 11496, 12933, 13412, 14370, 15120, 16765, 17244, 19160, 20118, 21555, 22680, 22992, 25866, 26824, 28740, 30177, 33530, 34488, 38320, 38799, 40236, 43110, 45360, 50295, 51732, 53648, 57480, 60354, 64665, 67060, 68976, 77598, 80472, 86220, 90531, 100590, 103464, 114960, 120708, 129330, 134120, 150885, 155196, 160944, 172440, 181062, 193995, 201180, 206928, 241416, 258660, 268240, 271593, 301770, 310392, 344880, 362124, 387990, 402360, 452655, 482832, 517320, 543186, 603540, 620784, 724248, 775980, 804720, 905310, 1034640, 1086372, 1207080, 1357965, 1448496, 1551960, 1810620, 2172744, 2414160, 2715930, 3103920, 3621240, 4345488, 5431860, 7242480, 10863720, 21727440]

約数ペア:

[(1, 21727440), (2, 10863720), (3, 7242480), (4, 5431860), (5, 4345488), (6, 3621240), (7, 3103920), (8, 2715930), (9, 2414160), (10, 2172744), (12, 1810620), (14, 1551960), (15, 1448496), (16, 1357965), (18, 1207080), (20, 1086372), (21, 1034640), (24, 905310), (27, 804720), (28, 775980), (30, 724248), (35, 620784), (36, 603540), (40, 543186), (42, 517320), (45, 482832), (48, 452655), (54, 402360), (56, 387990), (60, 362124), (63, 344880), (70, 310392), (72, 301770), (80, 271593), (81, 268240), (84, 258660), (90, 241416), (105, 206928), (108, 201180), (112, 193995), (120, 181062), (126, 172440), (135, 160944), (140, 155196), (144, 150885), (162, 134120), (168, 129330), (180, 120708), (189, 114960), (210, 103464), (216, 100590), (240, 90531), (252, 86220), (270, 80472), (280, 77598), (315, 68976), (324, 67060), (336, 64665), (360, 60354), (378, 57480), (405, 53648), (420, 51732), (432, 50295), (479, 45360), (504, 43110), (540, 40236), (560, 38799), (567, 38320), (630, 34488), (648, 33530), (720, 30177), (756, 28740), (810, 26824), (840, 25866), (945, 22992), (958, 22680), (1008, 21555), (1080, 20118), (1134, 19160), (1260, 17244), (1296, 16765), (1437, 15120), (1512, 14370), (1620, 13412), (1680, 12933), (1890, 11496), (1916, 11340), (2160, 10059), (2268, 9580), (2395, 9072), (2520, 8622), (2835, 7664), (2874, 7560), (3024, 7185), (3240, 6706), (3353, 6480), (3780, 5748), (3832, 5670), (4311, 5040), (4536, 4790)]