78880320

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:533

約数の個数: 168

約数和(自身を含む): 276377400

約数和(自身を除く): 197497080

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, 144, 160, 180, 183, 192, 240, 244, 288, 305, 320, 360, 366, 449, 480, 488, 549, 576, 610, 720, 732, 898, 915, 960, 976, 1098, 1220, 1347, 1440, 1464, 1796, 1830, 1952, 2196, 2245, 2440, 2694, 2745, 2880, 2928, 3592, 3660, 3904, 4041, 4392, 4490, 4880, 5388, 5490, 5856, 6735, 7184, 7320, 8082, 8784, 8980, 9760, 10776, 10980, 11712, 13470, 14368, 14640, 16164, 17568, 17960, 19520, 20205, 21552, 21960, 26940, 27389, 28736, 29280, 32328, 35136, 35920, 40410, 43104, 43920, 53880, 54778, 58560, 64656, 71840, 80820, 82167, 86208, 87840, 107760, 109556, 129312, 136945, 143680, 161640, 164334, 175680, 215520, 219112, 246501, 258624, 273890, 323280, 328668, 410835, 431040, 438224, 493002, 547780, 646560, 657336, 821670, 876448, 986004, 1095560, 1232505, 1293120, 1314672, 1643340, 1752896, 1972008, 2191120, 2465010, 2629344, 3286680, 3944016, 4382240, 4930020, 5258688, 6573360, 7888032, 8764480, 9860040, 13146720, 15776064, 19720080, 26293440, 39440160, 78880320]

約数ペア:

[(1, 78880320), (2, 39440160), (3, 26293440), (4, 19720080), (5, 15776064), (6, 13146720), (8, 9860040), (9, 8764480), (10, 7888032), (12, 6573360), (15, 5258688), (16, 4930020), (18, 4382240), (20, 3944016), (24, 3286680), (30, 2629344), (32, 2465010), (36, 2191120), (40, 1972008), (45, 1752896), (48, 1643340), (60, 1314672), (61, 1293120), (64, 1232505), (72, 1095560), (80, 986004), (90, 876448), (96, 821670), (120, 657336), (122, 646560), (144, 547780), (160, 493002), (180, 438224), (183, 431040), (192, 410835), (240, 328668), (244, 323280), (288, 273890), (305, 258624), (320, 246501), (360, 219112), (366, 215520), (449, 175680), (480, 164334), (488, 161640), (549, 143680), (576, 136945), (610, 129312), (720, 109556), (732, 107760), (898, 87840), (915, 86208), (960, 82167), (976, 80820), (1098, 71840), (1220, 64656), (1347, 58560), (1440, 54778), (1464, 53880), (1796, 43920), (1830, 43104), (1952, 40410), (2196, 35920), (2245, 35136), (2440, 32328), (2694, 29280), (2745, 28736), (2880, 27389), (2928, 26940), (3592, 21960), (3660, 21552), (3904, 20205), (4041, 19520), (4392, 17960), (4490, 17568), (4880, 16164), (5388, 14640), (5490, 14368), (5856, 13470), (6735, 11712), (7184, 10980), (7320, 10776), (8082, 9760), (8784, 8980)]