77636720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{138637}}^1$

素因数の和:138657

約数の個数: 40

約数和(自身を含む): 206293344

約数和(自身を除く): 128656624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 138637, 277274, 554548, 693185, 970459, 1109096, 1386370, 1940918, 2218192, 2772740, 3881836, 4852295, 5545480, 7763672, 9704590, 11090960, 15527344, 19409180, 38818360, 77636720]

約数ペア:

[(1, 77636720), (2, 38818360), (4, 19409180), (5, 15527344), (7, 11090960), (8, 9704590), (10, 7763672), (14, 5545480), (16, 4852295), (20, 3881836), (28, 2772740), (35, 2218192), (40, 1940918), (56, 1386370), (70, 1109096), (80, 970459), (112, 693185), (140, 554548), (280, 277274), (560, 138637)]