287875980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:413

約数の個数: 216

約数和(自身を含む): 1027772928

約数和(自身を除く): 739896948

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 127, 140, 147, 180, 196, 210, 245, 252, 254, 257, 294, 315, 381, 420, 441, 490, 508, 514, 588, 630, 635, 735, 762, 771, 882, 889, 980, 1028, 1143, 1260, 1270, 1285, 1470, 1524, 1542, 1764, 1778, 1799, 1905, 2205, 2286, 2313, 2540, 2570, 2667, 2940, 3084, 3556, 3598, 3810, 3855, 4410, 4445, 4572, 4626, 5140, 5334, 5397, 5715, 6223, 7196, 7620, 7710, 8001, 8820, 8890, 8995, 9252, 10668, 10794, 11430, 11565, 12446, 12593, 13335, 15420, 16002, 16191, 17780, 17990, 18669, 21588, 22860, 23130, 24892, 25186, 26670, 26985, 31115, 32004, 32382, 32639, 35980, 37338, 37779, 40005, 46260, 50372, 53340, 53970, 56007, 62230, 62965, 64764, 65278, 74676, 75558, 80010, 80955, 93345, 97917, 107940, 112014, 113337, 124460, 125930, 130556, 151116, 160020, 161910, 163195, 186690, 188895, 195834, 224028, 226674, 228473, 251860, 280035, 293751, 323820, 326390, 373380, 377790, 391668, 453348, 456946, 489585, 560070, 566685, 587502, 652780, 685419, 755580, 913892, 979170, 1120140, 1133370, 1142365, 1175004, 1370838, 1468755, 1599311, 1958340, 2056257, 2266740, 2284730, 2741676, 2937510, 3198622, 3427095, 4112514, 4569460, 4797933, 5875020, 6397244, 6854190, 7996555, 8225028, 9595866, 10281285, 13708380, 14393799, 15993110, 19191732, 20562570, 23989665, 28787598, 31986220, 41125140, 47979330, 57575196, 71968995, 95958660, 143937990, 287875980]

約数ペア:

[(1, 287875980), (2, 143937990), (3, 95958660), (4, 71968995), (5, 57575196), (6, 47979330), (7, 41125140), (9, 31986220), (10, 28787598), (12, 23989665), (14, 20562570), (15, 19191732), (18, 15993110), (20, 14393799), (21, 13708380), (28, 10281285), (30, 9595866), (35, 8225028), (36, 7996555), (42, 6854190), (45, 6397244), (49, 5875020), (60, 4797933), (63, 4569460), (70, 4112514), (84, 3427095), (90, 3198622), (98, 2937510), (105, 2741676), (126, 2284730), (127, 2266740), (140, 2056257), (147, 1958340), (180, 1599311), (196, 1468755), (210, 1370838), (245, 1175004), (252, 1142365), (254, 1133370), (257, 1120140), (294, 979170), (315, 913892), (381, 755580), (420, 685419), (441, 652780), (490, 587502), (508, 566685), (514, 560070), (588, 489585), (630, 456946), (635, 453348), (735, 391668), (762, 377790), (771, 373380), (882, 326390), (889, 323820), (980, 293751), (1028, 280035), (1143, 251860), (1260, 228473), (1270, 226674), (1285, 224028), (1470, 195834), (1524, 188895), (1542, 186690), (1764, 163195), (1778, 161910), (1799, 160020), (1905, 151116), (2205, 130556), (2286, 125930), (2313, 124460), (2540, 113337), (2570, 112014), (2667, 107940), (2940, 97917), (3084, 93345), (3556, 80955), (3598, 80010), (3810, 75558), (3855, 74676), (4410, 65278), (4445, 64764), (4572, 62965), (4626, 62230), (5140, 56007), (5334, 53970), (5397, 53340), (5715, 50372), (6223, 46260), (7196, 40005), (7620, 37779), (7710, 37338), (8001, 35980), (8820, 32639), (8890, 32382), (8995, 32004), (9252, 31115), (10668, 26985), (10794, 26670), (11430, 25186), (11565, 24892), (12446, 23130), (12593, 22860), (13335, 21588), (15420, 18669), (16002, 17990), (16191, 17780)]