80221680

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1447}}^1$

素因数の和:1484

約数の個数: 240

約数和(自身を含む): 336121344

約数和(自身を除く): 255899664

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 360, 385, 396, 420, 440, 462, 495, 504, 528, 560, 616, 630, 660, 693, 720, 770, 792, 840, 880, 924, 990, 1008, 1155, 1232, 1260, 1320, 1386, 1447, 1540, 1584, 1680, 1848, 1980, 2310, 2520, 2640, 2772, 2894, 3080, 3465, 3696, 3960, 4341, 4620, 5040, 5544, 5788, 6160, 6930, 7235, 7920, 8682, 9240, 10129, 11088, 11576, 13023, 13860, 14470, 15917, 17364, 18480, 20258, 21705, 23152, 26046, 27720, 28940, 30387, 31834, 34728, 40516, 43410, 47751, 50645, 52092, 55440, 57880, 60774, 63668, 65115, 69456, 79585, 81032, 86820, 91161, 95502, 101290, 104184, 111419, 115760, 121548, 127336, 130230, 143253, 151935, 159170, 162064, 173640, 182322, 191004, 202580, 208368, 222838, 238755, 243096, 254672, 260460, 286506, 303870, 318340, 334257, 347280, 364644, 382008, 405160, 445676, 455805, 477510, 486192, 520920, 557095, 573012, 607740, 636680, 668514, 716265, 729288, 764016, 810320, 891352, 911610, 955020, 1002771, 1041840, 1114190, 1146024, 1215480, 1273360, 1337028, 1432530, 1458576, 1671285, 1782704, 1823220, 1910040, 2005542, 2228380, 2292048, 2430960, 2674056, 2865060, 3342570, 3646440, 3820080, 4011084, 4456760, 5013855, 5348112, 5730120, 6685140, 7292880, 8022168, 8913520, 10027710, 11460240, 13370280, 16044336, 20055420, 26740560, 40110840, 80221680]

約数ペア:

[(1, 80221680), (2, 40110840), (3, 26740560), (4, 20055420), (5, 16044336), (6, 13370280), (7, 11460240), (8, 10027710), (9, 8913520), (10, 8022168), (11, 7292880), (12, 6685140), (14, 5730120), (15, 5348112), (16, 5013855), (18, 4456760), (20, 4011084), (21, 3820080), (22, 3646440), (24, 3342570), (28, 2865060), (30, 2674056), (33, 2430960), (35, 2292048), (36, 2228380), (40, 2005542), (42, 1910040), (44, 1823220), (45, 1782704), (48, 1671285), (55, 1458576), (56, 1432530), (60, 1337028), (63, 1273360), (66, 1215480), (70, 1146024), (72, 1114190), (77, 1041840), (80, 1002771), (84, 955020), (88, 911610), (90, 891352), (99, 810320), (105, 764016), (110, 729288), (112, 716265), (120, 668514), (126, 636680), (132, 607740), (140, 573012), (144, 557095), (154, 520920), (165, 486192), (168, 477510), (176, 455805), (180, 445676), (198, 405160), (210, 382008), (220, 364644), (231, 347280), (240, 334257), (252, 318340), (264, 303870), (280, 286506), (308, 260460), (315, 254672), (330, 243096), (336, 238755), (360, 222838), (385, 208368), (396, 202580), (420, 191004), (440, 182322), (462, 173640), (495, 162064), (504, 159170), (528, 151935), (560, 143253), (616, 130230), (630, 127336), (660, 121548), (693, 115760), (720, 111419), (770, 104184), (792, 101290), (840, 95502), (880, 91161), (924, 86820), (990, 81032), (1008, 79585), (1155, 69456), (1232, 65115), (1260, 63668), (1320, 60774), (1386, 57880), (1447, 55440), (1540, 52092), (1584, 50645), (1680, 47751), (1848, 43410), (1980, 40516), (2310, 34728), (2520, 31834), (2640, 30387), (2772, 28940), (2894, 27720), (3080, 26046), (3465, 23152), (3696, 21705), (3960, 20258), (4341, 18480), (4620, 17364), (5040, 15917), (5544, 14470), (5788, 13860), (6160, 13023), (6930, 11576), (7235, 11088), (7920, 10129), (8682, 9240)]