55279840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{641}}^1$

素因数の和:681

約数の個数: 144

約数和(自身を含む): 165990384

約数和(自身を除く): 110710544

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, 641, 770, 784, 880, 980, 1078, 1120, 1232, 1282, 1540, 1568, 1760, 1960, 2156, 2464, 2564, 2695, 3080, 3205, 3920, 4312, 4487, 5128, 5390, 6160, 6410, 7051, 7840, 8624, 8974, 10256, 10780, 12320, 12820, 14102, 17248, 17948, 20512, 21560, 22435, 25640, 28204, 31409, 35255, 35896, 43120, 44870, 49357, 51280, 56408, 62818, 70510, 71792, 86240, 89740, 98714, 102560, 112816, 125636, 141020, 143584, 157045, 179480, 197428, 225632, 246785, 251272, 282040, 314090, 345499, 358960, 394856, 493570, 502544, 564080, 628180, 690998, 717920, 789712, 987140, 1005088, 1128160, 1256360, 1381996, 1579424, 1727495, 1974280, 2512720, 2763992, 3454990, 3948560, 5025440, 5527984, 6909980, 7897120, 11055968, 13819960, 27639920, 55279840]

約数ペア:

[(1, 55279840), (2, 27639920), (4, 13819960), (5, 11055968), (7, 7897120), (8, 6909980), (10, 5527984), (11, 5025440), (14, 3948560), (16, 3454990), (20, 2763992), (22, 2512720), (28, 1974280), (32, 1727495), (35, 1579424), (40, 1381996), (44, 1256360), (49, 1128160), (55, 1005088), (56, 987140), (70, 789712), (77, 717920), (80, 690998), (88, 628180), (98, 564080), (110, 502544), (112, 493570), (140, 394856), (154, 358960), (160, 345499), (176, 314090), (196, 282040), (220, 251272), (224, 246785), (245, 225632), (280, 197428), (308, 179480), (352, 157045), (385, 143584), (392, 141020), (440, 125636), (490, 112816), (539, 102560), (560, 98714), (616, 89740), (641, 86240), (770, 71792), (784, 70510), (880, 62818), (980, 56408), (1078, 51280), (1120, 49357), (1232, 44870), (1282, 43120), (1540, 35896), (1568, 35255), (1760, 31409), (1960, 28204), (2156, 25640), (2464, 22435), (2564, 21560), (2695, 20512), (3080, 17948), (3205, 17248), (3920, 14102), (4312, 12820), (4487, 12320), (5128, 10780), (5390, 10256), (6160, 8974), (6410, 8624), (7051, 7840)]