138435840

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 216

約数和(自身を含む): 489296808

約数和(自身を除く): 350860968

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 61, 64, 72, 80, 90, 96, 120, 122, 128, 144, 160, 180, 183, 192, 197, 240, 244, 256, 288, 305, 320, 360, 366, 384, 394, 480, 488, 549, 576, 591, 610, 640, 720, 732, 768, 788, 915, 960, 976, 985, 1098, 1152, 1182, 1220, 1280, 1440, 1464, 1576, 1773, 1830, 1920, 1952, 1970, 2196, 2304, 2364, 2440, 2745, 2880, 2928, 2955, 3152, 3546, 3660, 3840, 3904, 3940, 4392, 4728, 4880, 5490, 5760, 5856, 5910, 6304, 7092, 7320, 7808, 7880, 8784, 8865, 9456, 9760, 10980, 11520, 11712, 11820, 12017, 12608, 14184, 14640, 15616, 15760, 17568, 17730, 18912, 19520, 21960, 23424, 23640, 24034, 25216, 28368, 29280, 31520, 35136, 35460, 36051, 37824, 39040, 43920, 46848, 47280, 48068, 50432, 56736, 58560, 60085, 63040, 70272, 70920, 72102, 75648, 78080, 87840, 94560, 96136, 108153, 113472, 117120, 120170, 126080, 140544, 141840, 144204, 151296, 175680, 180255, 189120, 192272, 216306, 226944, 234240, 240340, 252160, 283680, 288408, 351360, 360510, 378240, 384544, 432612, 453888, 480680, 540765, 567360, 576816, 702720, 721020, 756480, 769088, 865224, 961360, 1081530, 1134720, 1153632, 1442040, 1538176, 1730448, 1922720, 2163060, 2269440, 2307264, 2884080, 3076352, 3460896, 3845440, 4326120, 4614528, 5768160, 6921792, 7690880, 8652240, 9229056, 11536320, 13843584, 15381760, 17304480, 23072640, 27687168, 34608960, 46145280, 69217920, 138435840]

約数ペア:

[(1, 138435840), (2, 69217920), (3, 46145280), (4, 34608960), (5, 27687168), (6, 23072640), (8, 17304480), (9, 15381760), (10, 13843584), (12, 11536320), (15, 9229056), (16, 8652240), (18, 7690880), (20, 6921792), (24, 5768160), (30, 4614528), (32, 4326120), (36, 3845440), (40, 3460896), (45, 3076352), (48, 2884080), (60, 2307264), (61, 2269440), (64, 2163060), (72, 1922720), (80, 1730448), (90, 1538176), (96, 1442040), (120, 1153632), (122, 1134720), (128, 1081530), (144, 961360), (160, 865224), (180, 769088), (183, 756480), (192, 721020), (197, 702720), (240, 576816), (244, 567360), (256, 540765), (288, 480680), (305, 453888), (320, 432612), (360, 384544), (366, 378240), (384, 360510), (394, 351360), (480, 288408), (488, 283680), (549, 252160), (576, 240340), (591, 234240), (610, 226944), (640, 216306), (720, 192272), (732, 189120), (768, 180255), (788, 175680), (915, 151296), (960, 144204), (976, 141840), (985, 140544), (1098, 126080), (1152, 120170), (1182, 117120), (1220, 113472), (1280, 108153), (1440, 96136), (1464, 94560), (1576, 87840), (1773, 78080), (1830, 75648), (1920, 72102), (1952, 70920), (1970, 70272), (2196, 63040), (2304, 60085), (2364, 58560), (2440, 56736), (2745, 50432), (2880, 48068), (2928, 47280), (2955, 46848), (3152, 43920), (3546, 39040), (3660, 37824), (3840, 36051), (3904, 35460), (3940, 35136), (4392, 31520), (4728, 29280), (4880, 28368), (5490, 25216), (5760, 24034), (5856, 23640), (5910, 23424), (6304, 21960), (7092, 19520), (7320, 18912), (7808, 17730), (7880, 17568), (8784, 15760), (8865, 15616), (9456, 14640), (9760, 14184), (10980, 12608), (11520, 12017), (11712, 11820)]