87878560

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1019}}^1$

素因数の和:1059

約数の個数: 144

約数和(自身を含む): 263723040

約数和(自身を除く): 175844480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 352, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 980, 1019, 1078, 1120, 1232, 1540, 1568, 1760, 1960, 2038, 2156, 2464, 2695, 3080, 3920, 4076, 4312, 5095, 5390, 6160, 7133, 7840, 8152, 8624, 10190, 10780, 11209, 12320, 14266, 16304, 17248, 20380, 21560, 22418, 28532, 32608, 35665, 40760, 43120, 44836, 49931, 56045, 57064, 71330, 78463, 81520, 86240, 89672, 99862, 112090, 114128, 142660, 156926, 163040, 179344, 199724, 224180, 228256, 249655, 285320, 313852, 358688, 392315, 399448, 448360, 499310, 549241, 570640, 627704, 784630, 798896, 896720, 998620, 1098482, 1141280, 1255408, 1569260, 1597792, 1793440, 1997240, 2196964, 2510816, 2746205, 3138520, 3994480, 4393928, 5492410, 6277040, 7988960, 8787856, 10984820, 12554080, 17575712, 21969640, 43939280, 87878560]

約数ペア:

[(1, 87878560), (2, 43939280), (4, 21969640), (5, 17575712), (7, 12554080), (8, 10984820), (10, 8787856), (11, 7988960), (14, 6277040), (16, 5492410), (20, 4393928), (22, 3994480), (28, 3138520), (32, 2746205), (35, 2510816), (40, 2196964), (44, 1997240), (49, 1793440), (55, 1597792), (56, 1569260), (70, 1255408), (77, 1141280), (80, 1098482), (88, 998620), (98, 896720), (110, 798896), (112, 784630), (140, 627704), (154, 570640), (160, 549241), (176, 499310), (196, 448360), (220, 399448), (224, 392315), (245, 358688), (280, 313852), (308, 285320), (352, 249655), (385, 228256), (392, 224180), (440, 199724), (490, 179344), (539, 163040), (560, 156926), (616, 142660), (770, 114128), (784, 112090), (880, 99862), (980, 89672), (1019, 86240), (1078, 81520), (1120, 78463), (1232, 71330), (1540, 57064), (1568, 56045), (1760, 49931), (1960, 44836), (2038, 43120), (2156, 40760), (2464, 35665), (2695, 32608), (3080, 28532), (3920, 22418), (4076, 21560), (4312, 20380), (5095, 17248), (5390, 16304), (6160, 14266), (7133, 12320), (7840, 11209), (8152, 10780), (8624, 10190)]