639826560

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{607}}^1$

素因数の和:696

約数の個数: 256

約数和(自身を含む): 2306995200

約数和(自身を除く): 1667168640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 61, 64, 72, 80, 90, 96, 108, 120, 122, 128, 135, 144, 160, 180, 183, 192, 216, 240, 244, 270, 288, 305, 320, 360, 366, 384, 432, 480, 488, 540, 549, 576, 607, 610, 640, 720, 732, 864, 915, 960, 976, 1080, 1098, 1152, 1214, 1220, 1440, 1464, 1647, 1728, 1821, 1830, 1920, 1952, 2160, 2196, 2428, 2440, 2745, 2880, 2928, 3035, 3294, 3456, 3642, 3660, 3904, 4320, 4392, 4856, 4880, 5463, 5490, 5760, 5856, 6070, 6588, 7284, 7320, 7808, 8235, 8640, 8784, 9105, 9712, 9760, 10926, 10980, 11712, 12140, 13176, 14568, 14640, 16389, 16470, 17280, 17568, 18210, 19424, 19520, 21852, 21960, 23424, 24280, 26352, 27315, 29136, 29280, 32778, 32940, 35136, 36420, 37027, 38848, 39040, 43704, 43920, 48560, 52704, 54630, 58272, 58560, 65556, 65880, 70272, 72840, 74054, 77696, 81945, 87408, 87840, 97120, 105408, 109260, 111081, 116544, 117120, 131112, 131760, 145680, 148108, 163890, 174816, 175680, 185135, 194240, 210816, 218520, 222162, 233088, 262224, 263520, 291360, 296216, 327780, 333243, 349632, 351360, 370270, 388480, 437040, 444324, 524448, 527040, 555405, 582720, 592432, 655560, 666486, 699264, 740540, 874080, 888648, 999729, 1048896, 1054080, 1110810, 1165440, 1184864, 1311120, 1332972, 1481080, 1666215, 1748160, 1777296, 1999458, 2097792, 2221620, 2369728, 2622240, 2665944, 2962160, 3332430, 3496320, 3554592, 3998916, 4443240, 4739456, 4998645, 5244480, 5331888, 5924320, 6664860, 7109184, 7997832, 8886480, 9997290, 10488960, 10663776, 11848640, 13329720, 14218368, 15995664, 17772960, 19994580, 21327552, 23697280, 26659440, 31991328, 35545920, 39989160, 42655104, 53318880, 63982656, 71091840, 79978320, 106637760, 127965312, 159956640, 213275520, 319913280, 639826560]

約数ペア:

[(1, 639826560), (2, 319913280), (3, 213275520), (4, 159956640), (5, 127965312), (6, 106637760), (8, 79978320), (9, 71091840), (10, 63982656), (12, 53318880), (15, 42655104), (16, 39989160), (18, 35545920), (20, 31991328), (24, 26659440), (27, 23697280), (30, 21327552), (32, 19994580), (36, 17772960), (40, 15995664), (45, 14218368), (48, 13329720), (54, 11848640), (60, 10663776), (61, 10488960), (64, 9997290), (72, 8886480), (80, 7997832), (90, 7109184), (96, 6664860), (108, 5924320), (120, 5331888), (122, 5244480), (128, 4998645), (135, 4739456), (144, 4443240), (160, 3998916), (180, 3554592), (183, 3496320), (192, 3332430), (216, 2962160), (240, 2665944), (244, 2622240), (270, 2369728), (288, 2221620), (305, 2097792), (320, 1999458), (360, 1777296), (366, 1748160), (384, 1666215), (432, 1481080), (480, 1332972), (488, 1311120), (540, 1184864), (549, 1165440), (576, 1110810), (607, 1054080), (610, 1048896), (640, 999729), (720, 888648), (732, 874080), (864, 740540), (915, 699264), (960, 666486), (976, 655560), (1080, 592432), (1098, 582720), (1152, 555405), (1214, 527040), (1220, 524448), (1440, 444324), (1464, 437040), (1647, 388480), (1728, 370270), (1821, 351360), (1830, 349632), (1920, 333243), (1952, 327780), (2160, 296216), (2196, 291360), (2428, 263520), (2440, 262224), (2745, 233088), (2880, 222162), (2928, 218520), (3035, 210816), (3294, 194240), (3456, 185135), (3642, 175680), (3660, 174816), (3904, 163890), (4320, 148108), (4392, 145680), (4856, 131760), (4880, 131112), (5463, 117120), (5490, 116544), (5760, 111081), (5856, 109260), (6070, 105408), (6588, 97120), (7284, 87840), (7320, 87408), (7808, 81945), (8235, 77696), (8640, 74054), (8784, 72840), (9105, 70272), (9712, 65880), (9760, 65556), (10926, 58560), (10980, 58272), (11712, 54630), (12140, 52704), (13176, 48560), (14568, 43920), (14640, 43704), (16389, 39040), (16470, 38848), (17280, 37027), (17568, 36420), (18210, 35136), (19424, 32940), (19520, 32778), (21852, 29280), (21960, 29136), (23424, 27315), (24280, 26352)]