81586440

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{149}}^1$

素因数の和:198

約数の個数: 240

約数和(自身を含む): 298930500

約数和(自身を除く): 217344060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 81, 90, 104, 108, 117, 120, 130, 135, 149, 156, 162, 169, 180, 195, 216, 234, 260, 270, 298, 312, 324, 338, 351, 360, 390, 405, 447, 468, 507, 520, 540, 585, 596, 648, 676, 702, 745, 780, 810, 845, 894, 936, 1014, 1053, 1080, 1170, 1192, 1341, 1352, 1404, 1490, 1521, 1560, 1620, 1690, 1755, 1788, 1937, 2028, 2106, 2235, 2340, 2535, 2682, 2808, 2980, 3042, 3240, 3380, 3510, 3576, 3874, 4023, 4056, 4212, 4470, 4563, 4680, 5070, 5265, 5364, 5811, 5960, 6084, 6705, 6760, 7020, 7605, 7748, 8046, 8424, 8940, 9126, 9685, 10140, 10530, 10728, 11622, 12069, 12168, 13410, 13689, 14040, 15210, 15496, 16092, 17433, 17880, 18252, 19370, 20115, 20280, 21060, 22815, 23244, 24138, 25181, 26820, 27378, 29055, 30420, 32184, 34866, 36504, 38740, 40230, 42120, 45630, 46488, 48276, 50362, 52299, 53640, 54756, 58110, 60345, 60840, 68445, 69732, 75543, 77480, 80460, 87165, 91260, 96552, 100724, 104598, 109512, 116220, 120690, 125905, 136890, 139464, 151086, 156897, 160920, 174330, 182520, 201448, 209196, 226629, 232440, 241380, 251810, 261495, 273780, 302172, 313794, 348660, 377715, 418392, 453258, 482760, 503620, 522990, 547560, 604344, 627588, 679887, 697320, 755430, 784485, 906516, 1007240, 1045980, 1133145, 1255176, 1359774, 1510860, 1568970, 1813032, 2039661, 2091960, 2266290, 2719548, 3021720, 3137940, 3399435, 4079322, 4532580, 5439096, 6275880, 6798870, 8158644, 9065160, 10198305, 13597740, 16317288, 20396610, 27195480, 40793220, 81586440]

約数ペア:

[(1, 81586440), (2, 40793220), (3, 27195480), (4, 20396610), (5, 16317288), (6, 13597740), (8, 10198305), (9, 9065160), (10, 8158644), (12, 6798870), (13, 6275880), (15, 5439096), (18, 4532580), (20, 4079322), (24, 3399435), (26, 3137940), (27, 3021720), (30, 2719548), (36, 2266290), (39, 2091960), (40, 2039661), (45, 1813032), (52, 1568970), (54, 1510860), (60, 1359774), (65, 1255176), (72, 1133145), (78, 1045980), (81, 1007240), (90, 906516), (104, 784485), (108, 755430), (117, 697320), (120, 679887), (130, 627588), (135, 604344), (149, 547560), (156, 522990), (162, 503620), (169, 482760), (180, 453258), (195, 418392), (216, 377715), (234, 348660), (260, 313794), (270, 302172), (298, 273780), (312, 261495), (324, 251810), (338, 241380), (351, 232440), (360, 226629), (390, 209196), (405, 201448), (447, 182520), (468, 174330), (507, 160920), (520, 156897), (540, 151086), (585, 139464), (596, 136890), (648, 125905), (676, 120690), (702, 116220), (745, 109512), (780, 104598), (810, 100724), (845, 96552), (894, 91260), (936, 87165), (1014, 80460), (1053, 77480), (1080, 75543), (1170, 69732), (1192, 68445), (1341, 60840), (1352, 60345), (1404, 58110), (1490, 54756), (1521, 53640), (1560, 52299), (1620, 50362), (1690, 48276), (1755, 46488), (1788, 45630), (1937, 42120), (2028, 40230), (2106, 38740), (2235, 36504), (2340, 34866), (2535, 32184), (2682, 30420), (2808, 29055), (2980, 27378), (3042, 26820), (3240, 25181), (3380, 24138), (3510, 23244), (3576, 22815), (3874, 21060), (4023, 20280), (4056, 20115), (4212, 19370), (4470, 18252), (4563, 17880), (4680, 17433), (5070, 16092), (5265, 15496), (5364, 15210), (5811, 14040), (5960, 13689), (6084, 13410), (6705, 12168), (6760, 12069), (7020, 11622), (7605, 10728), (7748, 10530), (8046, 10140), (8424, 9685), (8940, 9126)]