27639920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{641}}^1$

素因数の和:679

約数の個数: 120

約数和(自身を含む): 81677808

約数和(自身を除く): 54037888

約数列:

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

約数ペア:

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