28720852020

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{593}}^1\times {\mathrm{4271}}^1$

素因数の和:4892

約数の個数: 240

約数和(自身を含む): 103167364608

約数和(自身を除く): 74446512588

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 593, 630, 756, 810, 945, 1134, 1186, 1260, 1620, 1779, 1890, 2268, 2372, 2835, 2965, 3558, 3780, 4151, 4271, 5337, 5670, 5930, 7116, 8302, 8542, 8895, 10674, 11340, 11860, 12453, 12813, 16011, 16604, 17084, 17790, 20755, 21348, 21355, 24906, 25626, 26685, 29897, 32022, 35580, 37359, 38439, 41510, 42710, 48033, 49812, 51252, 53370, 59794, 62265, 64044, 64065, 74718, 76878, 80055, 83020, 85420, 89691, 96066, 106740, 112077, 115317, 119588, 124530, 128130, 149436, 149485, 153756, 160110, 179382, 186795, 192132, 192195, 224154, 230634, 240165, 249060, 256260, 269073, 298970, 320220, 336231, 345951, 358764, 373590, 384390, 448308, 448455, 461268, 480330, 538146, 560385, 576585, 597940, 672462, 691902, 747180, 768780, 807219, 896910, 960660, 1076292, 1120770, 1153170, 1344924, 1345365, 1383804, 1614438, 1681155, 1729755, 1793820, 2241540, 2306340, 2421657, 2532703, 2690730, 3228876, 3362310, 3459510, 4036095, 4843314, 5065406, 5381460, 6724620, 6919020, 7598109, 8072190, 9686628, 10130812, 12108285, 12663515, 15196218, 16144380, 17728921, 22794327, 24216570, 25327030, 30392436, 35457842, 37990545, 45588654, 48433140, 50654060, 53186763, 68382981, 70915684, 75981090, 88644605, 91177308, 106373526, 113971635, 136765962, 151962180, 159560289, 177289210, 205148943, 212747052, 227943270, 265933815, 273531924, 319120578, 341914905, 354578420, 410297886, 455886540, 478680867, 531867630, 638241156, 683829810, 797801445, 820595772, 957361734, 1025744715, 1063735260, 1367659620, 1436042601, 1595602890, 1914723468, 2051489430, 2393404335, 2872085202, 3191205780, 4102978860, 4786808670, 5744170404, 7180213005, 9573617340, 14360426010, 28720852020]

約数ペア:

[(1, 28720852020), (2, 14360426010), (3, 9573617340), (4, 7180213005), (5, 5744170404), (6, 4786808670), (7, 4102978860), (9, 3191205780), (10, 2872085202), (12, 2393404335), (14, 2051489430), (15, 1914723468), (18, 1595602890), (20, 1436042601), (21, 1367659620), (27, 1063735260), (28, 1025744715), (30, 957361734), (35, 820595772), (36, 797801445), (42, 683829810), (45, 638241156), (54, 531867630), (60, 478680867), (63, 455886540), (70, 410297886), (81, 354578420), (84, 341914905), (90, 319120578), (105, 273531924), (108, 265933815), (126, 227943270), (135, 212747052), (140, 205148943), (162, 177289210), (180, 159560289), (189, 151962180), (210, 136765962), (252, 113971635), (270, 106373526), (315, 91177308), (324, 88644605), (378, 75981090), (405, 70915684), (420, 68382981), (540, 53186763), (567, 50654060), (593, 48433140), (630, 45588654), (756, 37990545), (810, 35457842), (945, 30392436), (1134, 25327030), (1186, 24216570), (1260, 22794327), (1620, 17728921), (1779, 16144380), (1890, 15196218), (2268, 12663515), (2372, 12108285), (2835, 10130812), (2965, 9686628), (3558, 8072190), (3780, 7598109), (4151, 6919020), (4271, 6724620), (5337, 5381460), (5670, 5065406), (5930, 4843314), (7116, 4036095), (8302, 3459510), (8542, 3362310), (8895, 3228876), (10674, 2690730), (11340, 2532703), (11860, 2421657), (12453, 2306340), (12813, 2241540), (16011, 1793820), (16604, 1729755), (17084, 1681155), (17790, 1614438), (20755, 1383804), (21348, 1345365), (21355, 1344924), (24906, 1153170), (25626, 1120770), (26685, 1076292), (29897, 960660), (32022, 896910), (35580, 807219), (37359, 768780), (38439, 747180), (41510, 691902), (42710, 672462), (48033, 597940), (49812, 576585), (51252, 560385), (53370, 538146), (59794, 480330), (62265, 461268), (64044, 448455), (64065, 448308), (74718, 384390), (76878, 373590), (80055, 358764), (83020, 345951), (85420, 336231), (89691, 320220), (96066, 298970), (106740, 269073), (112077, 256260), (115317, 249060), (119588, 240165), (124530, 230634), (128130, 224154), (149436, 192195), (149485, 192132), (153756, 186795), (160110, 179382)]