18983160

素因数分解:

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

素因数の和:70

約数の個数: 256

約数和(自身を含む): 75571200

約数和(自身を除く): 56588040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 40, 42, 45, 54, 56, 60, 62, 63, 70, 72, 81, 84, 90, 93, 105, 108, 120, 124, 126, 135, 140, 155, 162, 168, 180, 186, 189, 210, 216, 217, 243, 248, 252, 270, 279, 280, 310, 315, 324, 360, 372, 378, 405, 420, 434, 465, 486, 504, 540, 558, 567, 620, 630, 648, 651, 729, 744, 756, 810, 837, 840, 868, 930, 945, 972, 1080, 1085, 1116, 1134, 1215, 1240, 1260, 1302, 1395, 1458, 1512, 1620, 1674, 1701, 1736, 1860, 1890, 1944, 1953, 2170, 2187, 2232, 2268, 2430, 2511, 2520, 2604, 2790, 2835, 2916, 3240, 3255, 3348, 3402, 3645, 3720, 3780, 3906, 4185, 4340, 4374, 4536, 4860, 5022, 5103, 5208, 5580, 5670, 5832, 5859, 6510, 6696, 6804, 7290, 7533, 7560, 7812, 8370, 8505, 8680, 8748, 9720, 9765, 10044, 10206, 10935, 11160, 11340, 11718, 12555, 13020, 13608, 14580, 15066, 15309, 15624, 16740, 17010, 17496, 17577, 19530, 20088, 20412, 21870, 22599, 22680, 23436, 25110, 25515, 26040, 29160, 29295, 30132, 30618, 33480, 34020, 35154, 37665, 39060, 40824, 43740, 45198, 46872, 50220, 51030, 52731, 58590, 60264, 61236, 67797, 68040, 70308, 75330, 76545, 78120, 87480, 87885, 90396, 100440, 102060, 105462, 112995, 117180, 122472, 135594, 140616, 150660, 153090, 158193, 175770, 180792, 204120, 210924, 225990, 234360, 263655, 271188, 301320, 306180, 316386, 338985, 351540, 421848, 451980, 474579, 527310, 542376, 612360, 632772, 677970, 703080, 790965, 903960, 949158, 1054620, 1265544, 1355940, 1581930, 1898316, 2109240, 2372895, 2711880, 3163860, 3796632, 4745790, 6327720, 9491580, 18983160]

約数ペア:

[(1, 18983160), (2, 9491580), (3, 6327720), (4, 4745790), (5, 3796632), (6, 3163860), (7, 2711880), (8, 2372895), (9, 2109240), (10, 1898316), (12, 1581930), (14, 1355940), (15, 1265544), (18, 1054620), (20, 949158), (21, 903960), (24, 790965), (27, 703080), (28, 677970), (30, 632772), (31, 612360), (35, 542376), (36, 527310), (40, 474579), (42, 451980), (45, 421848), (54, 351540), (56, 338985), (60, 316386), (62, 306180), (63, 301320), (70, 271188), (72, 263655), (81, 234360), (84, 225990), (90, 210924), (93, 204120), (105, 180792), (108, 175770), (120, 158193), (124, 153090), (126, 150660), (135, 140616), (140, 135594), (155, 122472), (162, 117180), (168, 112995), (180, 105462), (186, 102060), (189, 100440), (210, 90396), (216, 87885), (217, 87480), (243, 78120), (248, 76545), (252, 75330), (270, 70308), (279, 68040), (280, 67797), (310, 61236), (315, 60264), (324, 58590), (360, 52731), (372, 51030), (378, 50220), (405, 46872), (420, 45198), (434, 43740), (465, 40824), (486, 39060), (504, 37665), (540, 35154), (558, 34020), (567, 33480), (620, 30618), (630, 30132), (648, 29295), (651, 29160), (729, 26040), (744, 25515), (756, 25110), (810, 23436), (837, 22680), (840, 22599), (868, 21870), (930, 20412), (945, 20088), (972, 19530), (1080, 17577), (1085, 17496), (1116, 17010), (1134, 16740), (1215, 15624), (1240, 15309), (1260, 15066), (1302, 14580), (1395, 13608), (1458, 13020), (1512, 12555), (1620, 11718), (1674, 11340), (1701, 11160), (1736, 10935), (1860, 10206), (1890, 10044), (1944, 9765), (1953, 9720), (2170, 8748), (2187, 8680), (2232, 8505), (2268, 8370), (2430, 7812), (2511, 7560), (2520, 7533), (2604, 7290), (2790, 6804), (2835, 6696), (2916, 6510), (3240, 5859), (3255, 5832), (3348, 5670), (3402, 5580), (3645, 5208), (3720, 5103), (3780, 5022), (3906, 4860), (4185, 4536), (4340, 4374)]