20389320

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 320

約数和(自身を含む): 83635200

約数和(自身を除く): 63245880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 29, 30, 31, 35, 36, 40, 42, 45, 54, 56, 58, 60, 62, 63, 70, 72, 81, 84, 87, 90, 93, 105, 108, 116, 120, 124, 126, 135, 140, 145, 155, 162, 168, 174, 180, 186, 189, 203, 210, 216, 217, 232, 248, 252, 261, 270, 279, 280, 290, 310, 315, 324, 348, 360, 372, 378, 405, 406, 420, 434, 435, 465, 504, 522, 540, 558, 567, 580, 609, 620, 630, 648, 651, 696, 744, 756, 783, 810, 812, 837, 840, 868, 870, 899, 930, 945, 1015, 1044, 1080, 1085, 1116, 1134, 1160, 1218, 1240, 1260, 1302, 1305, 1395, 1512, 1566, 1620, 1624, 1674, 1736, 1740, 1798, 1827, 1860, 1890, 1953, 2030, 2088, 2170, 2232, 2268, 2349, 2436, 2511, 2520, 2604, 2610, 2697, 2790, 2835, 3045, 3132, 3240, 3255, 3348, 3480, 3596, 3654, 3720, 3780, 3906, 3915, 4060, 4185, 4340, 4495, 4536, 4698, 4872, 5022, 5208, 5220, 5394, 5481, 5580, 5670, 5859, 6090, 6264, 6293, 6510, 6696, 7192, 7308, 7560, 7812, 7830, 8091, 8120, 8370, 8680, 8990, 9135, 9396, 9765, 10044, 10440, 10788, 10962, 11160, 11340, 11718, 11745, 12180, 12555, 12586, 13020, 13485, 14616, 15624, 15660, 16182, 16443, 16740, 17577, 17980, 18270, 18792, 18879, 19530, 20088, 21576, 21924, 22680, 23436, 23490, 24273, 24360, 25110, 25172, 26040, 26970, 27405, 29295, 31320, 31465, 32364, 32886, 33480, 35154, 35960, 36540, 37758, 39060, 40455, 43848, 46872, 46980, 48546, 50220, 50344, 53940, 54810, 56637, 58590, 62930, 64728, 65772, 70308, 72819, 73080, 75516, 78120, 80910, 82215, 87885, 93960, 94395, 97092, 100440, 107880, 109620, 113274, 117180, 121365, 125860, 131544, 140616, 145638, 151032, 161820, 164430, 169911, 175770, 188790, 194184, 219240, 226548, 234360, 242730, 251720, 283185, 291276, 323640, 328860, 339822, 351540, 364095, 377580, 453096, 485460, 509733, 566370, 582552, 657720, 679644, 703080, 728190, 755160, 849555, 970920, 1019466, 1132740, 1359288, 1456380, 1699110, 2038932, 2265480, 2548665, 2912760, 3398220, 4077864, 5097330, 6796440, 10194660, 20389320]

約数ペア:

[(1, 20389320), (2, 10194660), (3, 6796440), (4, 5097330), (5, 4077864), (6, 3398220), (7, 2912760), (8, 2548665), (9, 2265480), (10, 2038932), (12, 1699110), (14, 1456380), (15, 1359288), (18, 1132740), (20, 1019466), (21, 970920), (24, 849555), (27, 755160), (28, 728190), (29, 703080), (30, 679644), (31, 657720), (35, 582552), (36, 566370), (40, 509733), (42, 485460), (45, 453096), (54, 377580), (56, 364095), (58, 351540), (60, 339822), (62, 328860), (63, 323640), (70, 291276), (72, 283185), (81, 251720), (84, 242730), (87, 234360), (90, 226548), (93, 219240), (105, 194184), (108, 188790), (116, 175770), (120, 169911), (124, 164430), (126, 161820), (135, 151032), (140, 145638), (145, 140616), (155, 131544), (162, 125860), (168, 121365), (174, 117180), (180, 113274), (186, 109620), (189, 107880), (203, 100440), (210, 97092), (216, 94395), (217, 93960), (232, 87885), (248, 82215), (252, 80910), (261, 78120), (270, 75516), (279, 73080), (280, 72819), (290, 70308), (310, 65772), (315, 64728), (324, 62930), (348, 58590), (360, 56637), (372, 54810), (378, 53940), (405, 50344), (406, 50220), (420, 48546), (434, 46980), (435, 46872), (465, 43848), (504, 40455), (522, 39060), (540, 37758), (558, 36540), (567, 35960), (580, 35154), (609, 33480), (620, 32886), (630, 32364), (648, 31465), (651, 31320), (696, 29295), (744, 27405), (756, 26970), (783, 26040), (810, 25172), (812, 25110), (837, 24360), (840, 24273), (868, 23490), (870, 23436), (899, 22680), (930, 21924), (945, 21576), (1015, 20088), (1044, 19530), (1080, 18879), (1085, 18792), (1116, 18270), (1134, 17980), (1160, 17577), (1218, 16740), (1240, 16443), (1260, 16182), (1302, 15660), (1305, 15624), (1395, 14616), (1512, 13485), (1566, 13020), (1620, 12586), (1624, 12555), (1674, 12180), (1736, 11745), (1740, 11718), (1798, 11340), (1827, 11160), (1860, 10962), (1890, 10788), (1953, 10440), (2030, 10044), (2088, 9765), (2170, 9396), (2232, 9135), (2268, 8990), (2349, 8680), (2436, 8370), (2511, 8120), (2520, 8091), (2604, 7830), (2610, 7812), (2697, 7560), (2790, 7308), (2835, 7192), (3045, 6696), (3132, 6510), (3240, 6293), (3255, 6264), (3348, 6090), (3480, 5859), (3596, 5670), (3654, 5580), (3720, 5481), (3780, 5394), (3906, 5220), (3915, 5208), (4060, 5022), (4185, 4872), (4340, 4698), (4495, 4536)]