1991604120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{8429}}^1$

素因数の和:8633

約数の個数: 128

約数和(自身を含む): 6555168000

約数和(自身を除く): 4563563880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 179, 220, 264, 330, 358, 440, 537, 660, 716, 895, 1074, 1320, 1432, 1790, 1969, 2148, 2685, 3580, 3938, 4296, 5370, 5907, 7160, 7876, 8429, 9845, 10740, 11814, 15752, 16858, 19690, 21480, 23628, 25287, 29535, 33716, 39380, 42145, 47256, 50574, 59070, 67432, 78760, 84290, 92719, 101148, 118140, 126435, 168580, 185438, 202296, 236280, 252870, 278157, 337160, 370876, 463595, 505740, 556314, 741752, 927190, 1011480, 1112628, 1390785, 1508791, 1854380, 2225256, 2781570, 3017582, 3708760, 4526373, 5563140, 6035164, 7543955, 9052746, 11126280, 12070328, 15087910, 16596701, 18105492, 22631865, 30175820, 33193402, 36210984, 45263730, 49790103, 60351640, 66386804, 82983505, 90527460, 99580206, 132773608, 165967010, 181054920, 199160412, 248950515, 331934020, 398320824, 497901030, 663868040, 995802060, 1991604120]

約数ペア:

[(1, 1991604120), (2, 995802060), (3, 663868040), (4, 497901030), (5, 398320824), (6, 331934020), (8, 248950515), (10, 199160412), (11, 181054920), (12, 165967010), (15, 132773608), (20, 99580206), (22, 90527460), (24, 82983505), (30, 66386804), (33, 60351640), (40, 49790103), (44, 45263730), (55, 36210984), (60, 33193402), (66, 30175820), (88, 22631865), (110, 18105492), (120, 16596701), (132, 15087910), (165, 12070328), (179, 11126280), (220, 9052746), (264, 7543955), (330, 6035164), (358, 5563140), (440, 4526373), (537, 3708760), (660, 3017582), (716, 2781570), (895, 2225256), (1074, 1854380), (1320, 1508791), (1432, 1390785), (1790, 1112628), (1969, 1011480), (2148, 927190), (2685, 741752), (3580, 556314), (3938, 505740), (4296, 463595), (5370, 370876), (5907, 337160), (7160, 278157), (7876, 252870), (8429, 236280), (9845, 202296), (10740, 185438), (11814, 168580), (15752, 126435), (16858, 118140), (19690, 101148), (21480, 92719), (23628, 84290), (25287, 78760), (29535, 67432), (33716, 59070), (39380, 50574), (42145, 47256)]