51731255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 70170624

約数和(自身を除く): 18439369

約数列:

[1, 5, 17, 23, 47, 85, 115, 235, 391, 563, 799, 1081, 1955, 2815, 3995, 5405, 9571, 12949, 18377, 26461, 47855, 64745, 91885, 132305, 220133, 449837, 608603, 1100665, 2249185, 3043015, 10346251, 51731255]

約数ペア:

[(1, 51731255), (5, 10346251), (17, 3043015), (23, 2249185), (47, 1100665), (85, 608603), (115, 449837), (235, 220133), (391, 132305), (563, 91885), (799, 64745), (1081, 47855), (1955, 26461), (2815, 18377), (3995, 12949), (5405, 9571)]