51689120

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:395

約数の個数: 144

約数和(自身を含む): 149960160

約数和(自身を除く): 98271040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 347, 380, 392, 490, 532, 560, 608, 665, 694, 760, 784, 931, 980, 1064, 1120, 1330, 1388, 1520, 1568, 1735, 1862, 1960, 2128, 2429, 2660, 2776, 3040, 3470, 3724, 3920, 4256, 4655, 4858, 5320, 5552, 6593, 6940, 7448, 7840, 9310, 9716, 10640, 11104, 12145, 13186, 13880, 14896, 17003, 18620, 19432, 21280, 24290, 26372, 27760, 29792, 32965, 34006, 37240, 38864, 46151, 48580, 52744, 55520, 65930, 68012, 74480, 77728, 85015, 92302, 97160, 105488, 131860, 136024, 148960, 170030, 184604, 194320, 210976, 230755, 263720, 272048, 323057, 340060, 369208, 388640, 461510, 527440, 544096, 646114, 680120, 738416, 923020, 1054880, 1292228, 1360240, 1476832, 1615285, 1846040, 2584456, 2720480, 3230570, 3692080, 5168912, 6461140, 7384160, 10337824, 12922280, 25844560, 51689120]

約数ペア:

[(1, 51689120), (2, 25844560), (4, 12922280), (5, 10337824), (7, 7384160), (8, 6461140), (10, 5168912), (14, 3692080), (16, 3230570), (19, 2720480), (20, 2584456), (28, 1846040), (32, 1615285), (35, 1476832), (38, 1360240), (40, 1292228), (49, 1054880), (56, 923020), (70, 738416), (76, 680120), (80, 646114), (95, 544096), (98, 527440), (112, 461510), (133, 388640), (140, 369208), (152, 340060), (160, 323057), (190, 272048), (196, 263720), (224, 230755), (245, 210976), (266, 194320), (280, 184604), (304, 170030), (347, 148960), (380, 136024), (392, 131860), (490, 105488), (532, 97160), (560, 92302), (608, 85015), (665, 77728), (694, 74480), (760, 68012), (784, 65930), (931, 55520), (980, 52744), (1064, 48580), (1120, 46151), (1330, 38864), (1388, 37240), (1520, 34006), (1568, 32965), (1735, 29792), (1862, 27760), (1960, 26372), (2128, 24290), (2429, 21280), (2660, 19432), (2776, 18620), (3040, 17003), (3470, 14896), (3724, 13880), (3920, 13186), (4256, 12145), (4655, 11104), (4858, 10640), (5320, 9716), (5552, 9310), (6593, 7840), (6940, 7448)]