81097920

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{971}}^1$

素因数の和:1023

約数の個数: 168

約数和(自身を含む): 288858960

約数和(自身を除く): 207761040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 64, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 192, 232, 240, 261, 288, 290, 320, 348, 360, 435, 464, 480, 522, 576, 580, 696, 720, 870, 928, 960, 971, 1044, 1160, 1305, 1392, 1440, 1740, 1856, 1942, 2088, 2320, 2610, 2784, 2880, 2913, 3480, 3884, 4176, 4640, 4855, 5220, 5568, 5826, 6960, 7768, 8352, 8739, 9280, 9710, 10440, 11652, 13920, 14565, 15536, 16704, 17478, 19420, 20880, 23304, 27840, 28159, 29130, 31072, 34956, 38840, 41760, 43695, 46608, 56318, 58260, 62144, 69912, 77680, 83520, 84477, 87390, 93216, 112636, 116520, 139824, 140795, 155360, 168954, 174780, 186432, 225272, 233040, 253431, 279648, 281590, 310720, 337908, 349560, 422385, 450544, 466080, 506862, 559296, 563180, 675816, 699120, 844770, 901088, 932160, 1013724, 1126360, 1267155, 1351632, 1398240, 1689540, 1802176, 2027448, 2252720, 2534310, 2703264, 2796480, 3379080, 4054896, 4505440, 5068620, 5406528, 6758160, 8109792, 9010880, 10137240, 13516320, 16219584, 20274480, 27032640, 40548960, 81097920]

約数ペア:

[(1, 81097920), (2, 40548960), (3, 27032640), (4, 20274480), (5, 16219584), (6, 13516320), (8, 10137240), (9, 9010880), (10, 8109792), (12, 6758160), (15, 5406528), (16, 5068620), (18, 4505440), (20, 4054896), (24, 3379080), (29, 2796480), (30, 2703264), (32, 2534310), (36, 2252720), (40, 2027448), (45, 1802176), (48, 1689540), (58, 1398240), (60, 1351632), (64, 1267155), (72, 1126360), (80, 1013724), (87, 932160), (90, 901088), (96, 844770), (116, 699120), (120, 675816), (144, 563180), (145, 559296), (160, 506862), (174, 466080), (180, 450544), (192, 422385), (232, 349560), (240, 337908), (261, 310720), (288, 281590), (290, 279648), (320, 253431), (348, 233040), (360, 225272), (435, 186432), (464, 174780), (480, 168954), (522, 155360), (576, 140795), (580, 139824), (696, 116520), (720, 112636), (870, 93216), (928, 87390), (960, 84477), (971, 83520), (1044, 77680), (1160, 69912), (1305, 62144), (1392, 58260), (1440, 56318), (1740, 46608), (1856, 43695), (1942, 41760), (2088, 38840), (2320, 34956), (2610, 31072), (2784, 29130), (2880, 28159), (2913, 27840), (3480, 23304), (3884, 20880), (4176, 19420), (4640, 17478), (4855, 16704), (5220, 15536), (5568, 14565), (5826, 13920), (6960, 11652), (7768, 10440), (8352, 9710), (8739, 9280)]