81191608

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:799

約数の個数: 32

約数和(自身を含む): 154713600

約数和(自身を除く): 73521992

約数列:

[1, 2, 4, 8, 127, 157, 254, 314, 508, 509, 628, 1016, 1018, 1256, 2036, 4072, 19939, 39878, 64643, 79756, 79913, 129286, 159512, 159826, 258572, 319652, 517144, 639304, 10148951, 20297902, 40595804, 81191608]

約数ペア:

[(1, 81191608), (2, 40595804), (4, 20297902), (8, 10148951), (127, 639304), (157, 517144), (254, 319652), (314, 258572), (508, 159826), (509, 159512), (628, 129286), (1016, 79913), (1018, 79756), (1256, 64643), (2036, 39878), (4072, 19939)]