19621980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:233

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 52954020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 29, 30, 35, 36, 42, 45, 54, 58, 60, 63, 70, 84, 87, 90, 105, 108, 116, 126, 135, 140, 145, 174, 179, 180, 189, 203, 210, 252, 261, 270, 290, 315, 348, 358, 378, 406, 420, 435, 522, 537, 540, 580, 609, 630, 716, 756, 783, 812, 870, 895, 945, 1015, 1044, 1074, 1218, 1253, 1260, 1305, 1566, 1611, 1740, 1790, 1827, 1890, 2030, 2148, 2436, 2506, 2610, 2685, 3045, 3132, 3222, 3580, 3654, 3759, 3780, 3915, 4060, 4833, 5012, 5191, 5220, 5370, 5481, 6090, 6265, 6444, 7308, 7518, 7830, 8055, 9135, 9666, 10382, 10740, 10962, 11277, 12180, 12530, 15036, 15573, 15660, 16110, 18270, 18795, 19332, 20764, 21924, 22554, 24165, 25060, 25955, 27405, 31146, 32220, 33831, 36337, 36540, 37590, 45108, 46719, 48330, 51910, 54810, 56385, 62292, 67662, 72674, 75180, 77865, 93438, 96660, 103820, 109011, 109620, 112770, 135324, 140157, 145348, 155730, 169155, 181685, 186876, 218022, 225540, 233595, 280314, 311460, 327033, 338310, 363370, 436044, 467190, 545055, 560628, 654066, 676620, 700785, 726740, 934380, 981099, 1090110, 1308132, 1401570, 1635165, 1962198, 2180220, 2803140, 3270330, 3924396, 4905495, 6540660, 9810990, 19621980]

約数ペア:

[(1, 19621980), (2, 9810990), (3, 6540660), (4, 4905495), (5, 3924396), (6, 3270330), (7, 2803140), (9, 2180220), (10, 1962198), (12, 1635165), (14, 1401570), (15, 1308132), (18, 1090110), (20, 981099), (21, 934380), (27, 726740), (28, 700785), (29, 676620), (30, 654066), (35, 560628), (36, 545055), (42, 467190), (45, 436044), (54, 363370), (58, 338310), (60, 327033), (63, 311460), (70, 280314), (84, 233595), (87, 225540), (90, 218022), (105, 186876), (108, 181685), (116, 169155), (126, 155730), (135, 145348), (140, 140157), (145, 135324), (174, 112770), (179, 109620), (180, 109011), (189, 103820), (203, 96660), (210, 93438), (252, 77865), (261, 75180), (270, 72674), (290, 67662), (315, 62292), (348, 56385), (358, 54810), (378, 51910), (406, 48330), (420, 46719), (435, 45108), (522, 37590), (537, 36540), (540, 36337), (580, 33831), (609, 32220), (630, 31146), (716, 27405), (756, 25955), (783, 25060), (812, 24165), (870, 22554), (895, 21924), (945, 20764), (1015, 19332), (1044, 18795), (1074, 18270), (1218, 16110), (1253, 15660), (1260, 15573), (1305, 15036), (1566, 12530), (1611, 12180), (1740, 11277), (1790, 10962), (1827, 10740), (1890, 10382), (2030, 9666), (2148, 9135), (2436, 8055), (2506, 7830), (2610, 7518), (2685, 7308), (3045, 6444), (3132, 6265), (3222, 6090), (3580, 5481), (3654, 5370), (3759, 5220), (3780, 5191), (3915, 5012), (4060, 4833)]