81886140

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:143

約数の個数: 288

約数和(自身を含む): 308206080

約数和(自身を除く): 226319940

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, 81, 83, 84, 87, 90, 105, 108, 116, 126, 135, 140, 145, 162, 166, 174, 180, 189, 203, 210, 243, 249, 252, 261, 270, 290, 315, 324, 332, 348, 378, 405, 406, 415, 420, 435, 486, 498, 522, 540, 567, 580, 581, 609, 630, 747, 756, 783, 810, 812, 830, 870, 945, 972, 996, 1015, 1044, 1134, 1162, 1215, 1218, 1245, 1260, 1305, 1494, 1566, 1620, 1660, 1701, 1740, 1743, 1827, 1890, 2030, 2241, 2268, 2324, 2349, 2407, 2430, 2436, 2490, 2610, 2835, 2905, 2988, 3045, 3132, 3402, 3486, 3654, 3735, 3780, 3915, 4060, 4482, 4698, 4814, 4860, 4980, 5220, 5229, 5481, 5670, 5810, 6090, 6723, 6804, 6972, 7047, 7221, 7308, 7470, 7830, 8505, 8715, 8964, 9135, 9396, 9628, 10458, 10962, 11205, 11340, 11620, 11745, 12035, 12180, 13446, 14094, 14442, 14940, 15660, 15687, 16443, 16849, 17010, 17430, 18270, 20169, 20916, 21663, 21924, 22410, 23490, 24070, 26145, 26892, 27405, 28188, 28884, 31374, 32886, 33615, 33698, 34020, 34860, 35235, 36105, 36540, 40338, 43326, 44820, 46980, 47061, 48140, 49329, 50547, 52290, 54810, 62748, 64989, 65772, 67230, 67396, 70470, 72210, 78435, 80676, 82215, 84245, 86652, 94122, 98658, 100845, 101094, 104580, 108315, 109620, 129978, 134460, 140940, 141183, 144420, 151641, 156870, 164430, 168490, 188244, 194967, 197316, 201690, 202188, 216630, 235305, 246645, 252735, 259956, 282366, 303282, 313740, 324945, 328860, 336980, 389934, 403380, 433260, 454923, 470610, 493290, 505470, 564732, 584901, 606564, 649890, 705915, 758205, 779868, 909846, 941220, 974835, 986580, 1010940, 1169802, 1299780, 1364769, 1411830, 1516410, 1819692, 1949670, 2274615, 2339604, 2729538, 2823660, 2924505, 3032820, 3899340, 4094307, 4549230, 5459076, 5849010, 6823845, 8188614, 9098460, 11698020, 13647690, 16377228, 20471535, 27295380, 40943070, 81886140]

約数ペア:

[(1, 81886140), (2, 40943070), (3, 27295380), (4, 20471535), (5, 16377228), (6, 13647690), (7, 11698020), (9, 9098460), (10, 8188614), (12, 6823845), (14, 5849010), (15, 5459076), (18, 4549230), (20, 4094307), (21, 3899340), (27, 3032820), (28, 2924505), (29, 2823660), (30, 2729538), (35, 2339604), (36, 2274615), (42, 1949670), (45, 1819692), (54, 1516410), (58, 1411830), (60, 1364769), (63, 1299780), (70, 1169802), (81, 1010940), (83, 986580), (84, 974835), (87, 941220), (90, 909846), (105, 779868), (108, 758205), (116, 705915), (126, 649890), (135, 606564), (140, 584901), (145, 564732), (162, 505470), (166, 493290), (174, 470610), (180, 454923), (189, 433260), (203, 403380), (210, 389934), (243, 336980), (249, 328860), (252, 324945), (261, 313740), (270, 303282), (290, 282366), (315, 259956), (324, 252735), (332, 246645), (348, 235305), (378, 216630), (405, 202188), (406, 201690), (415, 197316), (420, 194967), (435, 188244), (486, 168490), (498, 164430), (522, 156870), (540, 151641), (567, 144420), (580, 141183), (581, 140940), (609, 134460), (630, 129978), (747, 109620), (756, 108315), (783, 104580), (810, 101094), (812, 100845), (830, 98658), (870, 94122), (945, 86652), (972, 84245), (996, 82215), (1015, 80676), (1044, 78435), (1134, 72210), (1162, 70470), (1215, 67396), (1218, 67230), (1245, 65772), (1260, 64989), (1305, 62748), (1494, 54810), (1566, 52290), (1620, 50547), (1660, 49329), (1701, 48140), (1740, 47061), (1743, 46980), (1827, 44820), (1890, 43326), (2030, 40338), (2241, 36540), (2268, 36105), (2324, 35235), (2349, 34860), (2407, 34020), (2430, 33698), (2436, 33615), (2490, 32886), (2610, 31374), (2835, 28884), (2905, 28188), (2988, 27405), (3045, 26892), (3132, 26145), (3402, 24070), (3486, 23490), (3654, 22410), (3735, 21924), (3780, 21663), (3915, 20916), (4060, 20169), (4482, 18270), (4698, 17430), (4814, 17010), (4860, 16849), (4980, 16443), (5220, 15687), (5229, 15660), (5481, 14940), (5670, 14442), (5810, 14094), (6090, 13446), (6723, 12180), (6804, 12035), (6972, 11745), (7047, 11620), (7221, 11340), (7308, 11205), (7470, 10962), (7830, 10458), (8505, 9628), (8715, 9396), (8964, 9135)]