1680840

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:76

約数の個数: 192

約数和(自身を含む): 6739200

約数和(自身を除く): 5058360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 29, 30, 35, 36, 40, 42, 45, 46, 56, 58, 60, 63, 69, 70, 72, 84, 87, 90, 92, 105, 115, 116, 120, 126, 138, 140, 145, 161, 168, 174, 180, 184, 203, 207, 210, 230, 232, 252, 261, 276, 280, 290, 315, 322, 345, 348, 360, 406, 414, 420, 435, 460, 483, 504, 522, 552, 580, 609, 630, 644, 667, 690, 696, 805, 812, 828, 840, 870, 920, 966, 1015, 1035, 1044, 1160, 1218, 1260, 1288, 1305, 1334, 1380, 1449, 1610, 1624, 1656, 1740, 1827, 1932, 2001, 2030, 2070, 2088, 2415, 2436, 2520, 2610, 2668, 2760, 2898, 3045, 3220, 3335, 3480, 3654, 3864, 4002, 4060, 4140, 4669, 4830, 4872, 5220, 5336, 5796, 6003, 6090, 6440, 6670, 7245, 7308, 8004, 8120, 8280, 9135, 9338, 9660, 10005, 10440, 11592, 12006, 12180, 13340, 14007, 14490, 14616, 16008, 18270, 18676, 19320, 20010, 23345, 24012, 24360, 26680, 28014, 28980, 30015, 36540, 37352, 40020, 42021, 46690, 48024, 56028, 57960, 60030, 70035, 73080, 80040, 84042, 93380, 112056, 120060, 140070, 168084, 186760, 210105, 240120, 280140, 336168, 420210, 560280, 840420, 1680840]

約数ペア:

[(1, 1680840), (2, 840420), (3, 560280), (4, 420210), (5, 336168), (6, 280140), (7, 240120), (8, 210105), (9, 186760), (10, 168084), (12, 140070), (14, 120060), (15, 112056), (18, 93380), (20, 84042), (21, 80040), (23, 73080), (24, 70035), (28, 60030), (29, 57960), (30, 56028), (35, 48024), (36, 46690), (40, 42021), (42, 40020), (45, 37352), (46, 36540), (56, 30015), (58, 28980), (60, 28014), (63, 26680), (69, 24360), (70, 24012), (72, 23345), (84, 20010), (87, 19320), (90, 18676), (92, 18270), (105, 16008), (115, 14616), (116, 14490), (120, 14007), (126, 13340), (138, 12180), (140, 12006), (145, 11592), (161, 10440), (168, 10005), (174, 9660), (180, 9338), (184, 9135), (203, 8280), (207, 8120), (210, 8004), (230, 7308), (232, 7245), (252, 6670), (261, 6440), (276, 6090), (280, 6003), (290, 5796), (315, 5336), (322, 5220), (345, 4872), (348, 4830), (360, 4669), (406, 4140), (414, 4060), (420, 4002), (435, 3864), (460, 3654), (483, 3480), (504, 3335), (522, 3220), (552, 3045), (580, 2898), (609, 2760), (630, 2668), (644, 2610), (667, 2520), (690, 2436), (696, 2415), (805, 2088), (812, 2070), (828, 2030), (840, 2001), (870, 1932), (920, 1827), (966, 1740), (1015, 1656), (1035, 1624), (1044, 1610), (1160, 1449), (1218, 1380), (1260, 1334), (1288, 1305)]