80206980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^2$

素因数の和:103

約数の個数: 216

約数和(自身を含む): 283171392

約数和(自身を除く): 202964412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 23, 28, 30, 35, 38, 42, 46, 57, 60, 69, 70, 76, 84, 92, 95, 105, 114, 115, 133, 138, 140, 161, 190, 210, 228, 230, 266, 276, 285, 322, 345, 361, 380, 399, 420, 437, 460, 483, 529, 532, 570, 644, 665, 690, 722, 798, 805, 874, 966, 1058, 1083, 1140, 1311, 1330, 1380, 1444, 1587, 1596, 1610, 1748, 1805, 1932, 1995, 2116, 2166, 2185, 2415, 2527, 2622, 2645, 2660, 3059, 3174, 3220, 3610, 3703, 3990, 4332, 4370, 4830, 5054, 5244, 5290, 5415, 6118, 6348, 6555, 7220, 7406, 7581, 7935, 7980, 8303, 8740, 9177, 9660, 10051, 10108, 10580, 10830, 11109, 12236, 12635, 13110, 14812, 15162, 15295, 15870, 16606, 18354, 18515, 20102, 21660, 22218, 24909, 25270, 26220, 30153, 30324, 30590, 31740, 33212, 36708, 37030, 37905, 40204, 41515, 44436, 45885, 49818, 50255, 50540, 55545, 58121, 60306, 61180, 70357, 74060, 75810, 83030, 91770, 99636, 100510, 111090, 116242, 120612, 124545, 140714, 150765, 151620, 166060, 174363, 183540, 190969, 201020, 211071, 222180, 232484, 249090, 281428, 290605, 301530, 348726, 351785, 381938, 422142, 498180, 572907, 581210, 603060, 697452, 703570, 763876, 844284, 871815, 954845, 1055355, 1145814, 1162420, 1336783, 1407140, 1743630, 1909690, 2110710, 2291628, 2673566, 2864535, 3487260, 3819380, 4010349, 4221420, 5347132, 5729070, 6683915, 8020698, 11458140, 13367830, 16041396, 20051745, 26735660, 40103490, 80206980]

約数ペア:

[(1, 80206980), (2, 40103490), (3, 26735660), (4, 20051745), (5, 16041396), (6, 13367830), (7, 11458140), (10, 8020698), (12, 6683915), (14, 5729070), (15, 5347132), (19, 4221420), (20, 4010349), (21, 3819380), (23, 3487260), (28, 2864535), (30, 2673566), (35, 2291628), (38, 2110710), (42, 1909690), (46, 1743630), (57, 1407140), (60, 1336783), (69, 1162420), (70, 1145814), (76, 1055355), (84, 954845), (92, 871815), (95, 844284), (105, 763876), (114, 703570), (115, 697452), (133, 603060), (138, 581210), (140, 572907), (161, 498180), (190, 422142), (210, 381938), (228, 351785), (230, 348726), (266, 301530), (276, 290605), (285, 281428), (322, 249090), (345, 232484), (361, 222180), (380, 211071), (399, 201020), (420, 190969), (437, 183540), (460, 174363), (483, 166060), (529, 151620), (532, 150765), (570, 140714), (644, 124545), (665, 120612), (690, 116242), (722, 111090), (798, 100510), (805, 99636), (874, 91770), (966, 83030), (1058, 75810), (1083, 74060), (1140, 70357), (1311, 61180), (1330, 60306), (1380, 58121), (1444, 55545), (1587, 50540), (1596, 50255), (1610, 49818), (1748, 45885), (1805, 44436), (1932, 41515), (1995, 40204), (2116, 37905), (2166, 37030), (2185, 36708), (2415, 33212), (2527, 31740), (2622, 30590), (2645, 30324), (2660, 30153), (3059, 26220), (3174, 25270), (3220, 24909), (3610, 22218), (3703, 21660), (3990, 20102), (4332, 18515), (4370, 18354), (4830, 16606), (5054, 15870), (5244, 15295), (5290, 15162), (5415, 14812), (6118, 13110), (6348, 12635), (6555, 12236), (7220, 11109), (7406, 10830), (7581, 10580), (7935, 10108), (7980, 10051), (8303, 9660), (8740, 9177)]