2840040

素因数分解:

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

素因数の和:61

約数の個数: 192

約数和(自身を含む): 11232000

約数和(自身を除く): 8391960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 49, 56, 60, 63, 69, 70, 72, 84, 90, 92, 98, 105, 115, 120, 126, 138, 140, 147, 161, 168, 180, 184, 196, 207, 210, 230, 245, 252, 276, 280, 294, 315, 322, 343, 345, 360, 392, 414, 420, 441, 460, 483, 490, 504, 552, 588, 630, 644, 686, 690, 735, 805, 828, 840, 882, 920, 966, 980, 1029, 1035, 1127, 1176, 1260, 1288, 1372, 1380, 1449, 1470, 1610, 1656, 1715, 1764, 1932, 1960, 2058, 2070, 2205, 2254, 2415, 2520, 2744, 2760, 2898, 2940, 3087, 3220, 3381, 3430, 3528, 3864, 4116, 4140, 4410, 4508, 4830, 5145, 5635, 5796, 5880, 6174, 6440, 6762, 6860, 7245, 7889, 8232, 8280, 8820, 9016, 9660, 10143, 10290, 11270, 11592, 12348, 13524, 13720, 14490, 15435, 15778, 16905, 17640, 19320, 20286, 20580, 22540, 23667, 24696, 27048, 28980, 30870, 31556, 33810, 39445, 40572, 41160, 45080, 47334, 50715, 57960, 61740, 63112, 67620, 71001, 78890, 81144, 94668, 101430, 118335, 123480, 135240, 142002, 157780, 189336, 202860, 236670, 284004, 315560, 355005, 405720, 473340, 568008, 710010, 946680, 1420020, 2840040]

約数ペア:

[(1, 2840040), (2, 1420020), (3, 946680), (4, 710010), (5, 568008), (6, 473340), (7, 405720), (8, 355005), (9, 315560), (10, 284004), (12, 236670), (14, 202860), (15, 189336), (18, 157780), (20, 142002), (21, 135240), (23, 123480), (24, 118335), (28, 101430), (30, 94668), (35, 81144), (36, 78890), (40, 71001), (42, 67620), (45, 63112), (46, 61740), (49, 57960), (56, 50715), (60, 47334), (63, 45080), (69, 41160), (70, 40572), (72, 39445), (84, 33810), (90, 31556), (92, 30870), (98, 28980), (105, 27048), (115, 24696), (120, 23667), (126, 22540), (138, 20580), (140, 20286), (147, 19320), (161, 17640), (168, 16905), (180, 15778), (184, 15435), (196, 14490), (207, 13720), (210, 13524), (230, 12348), (245, 11592), (252, 11270), (276, 10290), (280, 10143), (294, 9660), (315, 9016), (322, 8820), (343, 8280), (345, 8232), (360, 7889), (392, 7245), (414, 6860), (420, 6762), (441, 6440), (460, 6174), (483, 5880), (490, 5796), (504, 5635), (552, 5145), (588, 4830), (630, 4508), (644, 4410), (686, 4140), (690, 4116), (735, 3864), (805, 3528), (828, 3430), (840, 3381), (882, 3220), (920, 3087), (966, 2940), (980, 2898), (1029, 2760), (1035, 2744), (1127, 2520), (1176, 2415), (1260, 2254), (1288, 2205), (1372, 2070), (1380, 2058), (1449, 1960), (1470, 1932), (1610, 1764), (1656, 1715)]