68397880

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1877}}^1$

素因数の和:2799

約数の個数: 32

約数和(自身を含む): 154146240

約数和(自身を除く): 85748360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1822, 1877, 3644, 3754, 4555, 7288, 7508, 9110, 9385, 15016, 18220, 18770, 36440, 37540, 75080, 1709947, 3419894, 6839788, 8549735, 13679576, 17099470, 34198940, 68397880]

約数ペア:

[(1, 68397880), (2, 34198940), (4, 17099470), (5, 13679576), (8, 8549735), (10, 6839788), (20, 3419894), (40, 1709947), (911, 75080), (1822, 37540), (1877, 36440), (3644, 18770), (3754, 18220), (4555, 15016), (7288, 9385), (7508, 9110)]