80401400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9349}}^1$

素因数の和:9408

約数の個数: 48

約数和(自身を含む): 191301000

約数和(自身を除く): 110899600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 4300, 8600, 9349, 18698, 37396, 46745, 74792, 93490, 186980, 233725, 373960, 402007, 467450, 804014, 934900, 1608028, 1869800, 2010035, 3216056, 4020070, 8040140, 10050175, 16080280, 20100350, 40200700, 80401400]

約数ペア:

[(1, 80401400), (2, 40200700), (4, 20100350), (5, 16080280), (8, 10050175), (10, 8040140), (20, 4020070), (25, 3216056), (40, 2010035), (43, 1869800), (50, 1608028), (86, 934900), (100, 804014), (172, 467450), (200, 402007), (215, 373960), (344, 233725), (430, 186980), (860, 93490), (1075, 74792), (1720, 46745), (2150, 37396), (4300, 18698), (8600, 9349)]