81516240

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2903}}^1$

素因数の和:2938

約数の個数: 160

約数和(自身を含む): 302480640

約数和(自身を除く): 220964400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 702, 720, 780, 936, 1040, 1080, 1170, 1404, 1560, 1755, 1872, 2160, 2340, 2808, 2903, 3120, 3510, 4680, 5616, 5806, 7020, 8709, 9360, 11612, 14040, 14515, 17418, 23224, 26127, 28080, 29030, 34836, 37739, 43545, 46448, 52254, 58060, 69672, 75478, 78381, 87090, 104508, 113217, 116120, 130635, 139344, 150956, 156762, 174180, 188695, 209016, 226434, 232240, 261270, 301912, 313524, 339651, 348360, 377390, 391905, 418032, 452868, 522540, 566085, 603824, 627048, 679302, 696720, 754780, 783810, 905736, 1018953, 1045080, 1132170, 1254096, 1358604, 1509560, 1567620, 1698255, 1811472, 2037906, 2090160, 2264340, 2717208, 3019120, 3135240, 3396510, 4075812, 4528680, 5094765, 5434416, 6270480, 6793020, 8151624, 9057360, 10189530, 13586040, 16303248, 20379060, 27172080, 40758120, 81516240]

約数ペア:

[(1, 81516240), (2, 40758120), (3, 27172080), (4, 20379060), (5, 16303248), (6, 13586040), (8, 10189530), (9, 9057360), (10, 8151624), (12, 6793020), (13, 6270480), (15, 5434416), (16, 5094765), (18, 4528680), (20, 4075812), (24, 3396510), (26, 3135240), (27, 3019120), (30, 2717208), (36, 2264340), (39, 2090160), (40, 2037906), (45, 1811472), (48, 1698255), (52, 1567620), (54, 1509560), (60, 1358604), (65, 1254096), (72, 1132170), (78, 1045080), (80, 1018953), (90, 905736), (104, 783810), (108, 754780), (117, 696720), (120, 679302), (130, 627048), (135, 603824), (144, 566085), (156, 522540), (180, 452868), (195, 418032), (208, 391905), (216, 377390), (234, 348360), (240, 339651), (260, 313524), (270, 301912), (312, 261270), (351, 232240), (360, 226434), (390, 209016), (432, 188695), (468, 174180), (520, 156762), (540, 150956), (585, 139344), (624, 130635), (702, 116120), (720, 113217), (780, 104508), (936, 87090), (1040, 78381), (1080, 75478), (1170, 69672), (1404, 58060), (1560, 52254), (1755, 46448), (1872, 43545), (2160, 37739), (2340, 34836), (2808, 29030), (2903, 28080), (3120, 26127), (3510, 23224), (4680, 17418), (5616, 14515), (5806, 14040), (7020, 11612), (8709, 9360)]