321777120

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{13681}}^1$

素因数の和:13713

約数の個数: 144

約数和(自身を含む): 1179169488

約数和(自身を除く): 857392368

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 11760, 13681, 23520, 27362, 41043, 54724, 68405, 82086, 95767, 109448, 136810, 164172, 191534, 205215, 218896, 273620, 287301, 328344, 383068, 410430, 437792, 478835, 547240, 574602, 656688, 670369, 766136, 820860, 957670, 1094480, 1149204, 1313376, 1340738, 1436505, 1532272, 1641720, 1915340, 2011107, 2188960, 2298408, 2681476, 2873010, 3064544, 3283440, 3351845, 3830680, 4022214, 4596816, 5362952, 5746020, 6566880, 6703690, 7661360, 8044428, 9193632, 10055535, 10725904, 11492040, 13407380, 15322720, 16088856, 20111070, 21451808, 22984080, 26814760, 32177712, 40222140, 45968160, 53629520, 64355424, 80444280, 107259040, 160888560, 321777120]

約数ペア:

[(1, 321777120), (2, 160888560), (3, 107259040), (4, 80444280), (5, 64355424), (6, 53629520), (7, 45968160), (8, 40222140), (10, 32177712), (12, 26814760), (14, 22984080), (15, 21451808), (16, 20111070), (20, 16088856), (21, 15322720), (24, 13407380), (28, 11492040), (30, 10725904), (32, 10055535), (35, 9193632), (40, 8044428), (42, 7661360), (48, 6703690), (49, 6566880), (56, 5746020), (60, 5362952), (70, 4596816), (80, 4022214), (84, 3830680), (96, 3351845), (98, 3283440), (105, 3064544), (112, 2873010), (120, 2681476), (140, 2298408), (147, 2188960), (160, 2011107), (168, 1915340), (196, 1641720), (210, 1532272), (224, 1436505), (240, 1340738), (245, 1313376), (280, 1149204), (294, 1094480), (336, 957670), (392, 820860), (420, 766136), (480, 670369), (490, 656688), (560, 574602), (588, 547240), (672, 478835), (735, 437792), (784, 410430), (840, 383068), (980, 328344), (1120, 287301), (1176, 273620), (1470, 218896), (1568, 205215), (1680, 191534), (1960, 164172), (2352, 136810), (2940, 109448), (3360, 95767), (3920, 82086), (4704, 68405), (5880, 54724), (7840, 41043), (11760, 27362), (13681, 23520)]