1978396560

素因数分解:

$2^4\times 3^2\times 5^1\times 7^3\times {\mathrm{8011}}^1$

素因数の和:8051

約数の個数: 240

約数和(自身を含む): 7749206400

約数和(自身を除く): 5770809840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 343, 360, 392, 420, 441, 490, 504, 560, 588, 630, 686, 720, 735, 784, 840, 882, 980, 1008, 1029, 1176, 1260, 1372, 1470, 1680, 1715, 1764, 1960, 2058, 2205, 2352, 2520, 2744, 2940, 3087, 3430, 3528, 3920, 4116, 4410, 5040, 5145, 5488, 5880, 6174, 6860, 7056, 8011, 8232, 8820, 10290, 11760, 12348, 13720, 15435, 16022, 16464, 17640, 20580, 24033, 24696, 27440, 30870, 32044, 35280, 40055, 41160, 48066, 49392, 56077, 61740, 64088, 72099, 80110, 82320, 96132, 112154, 120165, 123480, 128176, 144198, 160220, 168231, 192264, 224308, 240330, 246960, 280385, 288396, 320440, 336462, 360495, 384528, 392539, 448616, 480660, 504693, 560770, 576792, 640880, 672924, 720990, 785078, 841155, 897232, 961320, 1009386, 1121540, 1153584, 1177617, 1345848, 1441980, 1570156, 1682310, 1922640, 1962695, 2018772, 2243080, 2355234, 2523465, 2691696, 2747773, 2883960, 3140312, 3364620, 3532851, 3925390, 4037544, 4486160, 4710468, 5046930, 5495546, 5767920, 5888085, 6280624, 6729240, 7065702, 7850780, 8075088, 8243319, 9420936, 10093860, 10991092, 11776170, 13458480, 13738865, 14131404, 15701560, 16486638, 17664255, 18841872, 20187720, 21982184, 23552340, 24729957, 27477730, 28262808, 31403120, 32973276, 35328510, 40375440, 41216595, 43964368, 47104680, 49459914, 54955460, 56525616, 65946552, 70657020, 82433190, 94209360, 98919828, 109910920, 123649785, 131893104, 141314040, 164866380, 197839656, 219821840, 247299570, 282628080, 329732760, 395679312, 494599140, 659465520, 989198280, 1978396560]

約数ペア:

[(1, 1978396560), (2, 989198280), (3, 659465520), (4, 494599140), (5, 395679312), (6, 329732760), (7, 282628080), (8, 247299570), (9, 219821840), (10, 197839656), (12, 164866380), (14, 141314040), (15, 131893104), (16, 123649785), (18, 109910920), (20, 98919828), (21, 94209360), (24, 82433190), (28, 70657020), (30, 65946552), (35, 56525616), (36, 54955460), (40, 49459914), (42, 47104680), (45, 43964368), (48, 41216595), (49, 40375440), (56, 35328510), (60, 32973276), (63, 31403120), (70, 28262808), (72, 27477730), (80, 24729957), (84, 23552340), (90, 21982184), (98, 20187720), (105, 18841872), (112, 17664255), (120, 16486638), (126, 15701560), (140, 14131404), (144, 13738865), (147, 13458480), (168, 11776170), (180, 10991092), (196, 10093860), (210, 9420936), (240, 8243319), (245, 8075088), (252, 7850780), (280, 7065702), (294, 6729240), (315, 6280624), (336, 5888085), (343, 5767920), (360, 5495546), (392, 5046930), (420, 4710468), (441, 4486160), (490, 4037544), (504, 3925390), (560, 3532851), (588, 3364620), (630, 3140312), (686, 2883960), (720, 2747773), (735, 2691696), (784, 2523465), (840, 2355234), (882, 2243080), (980, 2018772), (1008, 1962695), (1029, 1922640), (1176, 1682310), (1260, 1570156), (1372, 1441980), (1470, 1345848), (1680, 1177617), (1715, 1153584), (1764, 1121540), (1960, 1009386), (2058, 961320), (2205, 897232), (2352, 841155), (2520, 785078), (2744, 720990), (2940, 672924), (3087, 640880), (3430, 576792), (3528, 560770), (3920, 504693), (4116, 480660), (4410, 448616), (5040, 392539), (5145, 384528), (5488, 360495), (5880, 336462), (6174, 320440), (6860, 288396), (7056, 280385), (8011, 246960), (8232, 240330), (8820, 224308), (10290, 192264), (11760, 168231), (12348, 160220), (13720, 144198), (15435, 128176), (16022, 123480), (16464, 120165), (17640, 112154), (20580, 96132), (24033, 82320), (24696, 80110), (27440, 72099), (30870, 64088), (32044, 61740), (35280, 56077), (40055, 49392), (41160, 48066)]