18557280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{263}}^1$

素因数の和:298

約数の個数: 216

約数和(自身を含む): 73945872

約数和(自身を除く): 55388592

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 263, 280, 288, 294, 315, 336, 360, 392, 420, 441, 480, 490, 504, 526, 560, 588, 630, 672, 720, 735, 784, 789, 840, 882, 980, 1008, 1052, 1120, 1176, 1260, 1315, 1440, 1470, 1568, 1578, 1680, 1764, 1841, 1960, 2016, 2104, 2205, 2352, 2367, 2520, 2630, 2940, 3156, 3360, 3528, 3682, 3920, 3945, 4208, 4410, 4704, 4734, 5040, 5260, 5523, 5880, 6312, 7056, 7364, 7840, 7890, 8416, 8820, 9205, 9468, 10080, 10520, 11046, 11760, 11835, 12624, 12887, 14112, 14728, 15780, 16569, 17640, 18410, 18936, 21040, 22092, 23520, 23670, 25248, 25774, 27615, 29456, 31560, 33138, 35280, 36820, 37872, 38661, 42080, 44184, 47340, 51548, 55230, 58912, 63120, 64435, 66276, 70560, 73640, 75744, 77322, 82845, 88368, 94680, 103096, 110460, 115983, 126240, 128870, 132552, 147280, 154644, 165690, 176736, 189360, 193305, 206192, 220920, 231966, 257740, 265104, 294560, 309288, 331380, 378720, 386610, 412384, 441840, 463932, 515480, 530208, 579915, 618576, 662760, 773220, 883680, 927864, 1030960, 1159830, 1237152, 1325520, 1546440, 1855728, 2061920, 2319660, 2651040, 3092880, 3711456, 4639320, 6185760, 9278640, 18557280]

約数ペア:

[(1, 18557280), (2, 9278640), (3, 6185760), (4, 4639320), (5, 3711456), (6, 3092880), (7, 2651040), (8, 2319660), (9, 2061920), (10, 1855728), (12, 1546440), (14, 1325520), (15, 1237152), (16, 1159830), (18, 1030960), (20, 927864), (21, 883680), (24, 773220), (28, 662760), (30, 618576), (32, 579915), (35, 530208), (36, 515480), (40, 463932), (42, 441840), (45, 412384), (48, 386610), (49, 378720), (56, 331380), (60, 309288), (63, 294560), (70, 265104), (72, 257740), (80, 231966), (84, 220920), (90, 206192), (96, 193305), (98, 189360), (105, 176736), (112, 165690), (120, 154644), (126, 147280), (140, 132552), (144, 128870), (147, 126240), (160, 115983), (168, 110460), (180, 103096), (196, 94680), (210, 88368), (224, 82845), (240, 77322), (245, 75744), (252, 73640), (263, 70560), (280, 66276), (288, 64435), (294, 63120), (315, 58912), (336, 55230), (360, 51548), (392, 47340), (420, 44184), (441, 42080), (480, 38661), (490, 37872), (504, 36820), (526, 35280), (560, 33138), (588, 31560), (630, 29456), (672, 27615), (720, 25774), (735, 25248), (784, 23670), (789, 23520), (840, 22092), (882, 21040), (980, 18936), (1008, 18410), (1052, 17640), (1120, 16569), (1176, 15780), (1260, 14728), (1315, 14112), (1440, 12887), (1470, 12624), (1568, 11835), (1578, 11760), (1680, 11046), (1764, 10520), (1841, 10080), (1960, 9468), (2016, 9205), (2104, 8820), (2205, 8416), (2352, 7890), (2367, 7840), (2520, 7364), (2630, 7056), (2940, 6312), (3156, 5880), (3360, 5523), (3528, 5260), (3682, 5040), (3920, 4734), (3945, 4704), (4208, 4410)]