81435928

素因数分解:

$2^3\times 7^1\times {\mathrm{509}}^1\times {\mathrm{2857}}^1$

素因数の和:3379

約数の個数: 32

約数和(自身を含む): 174909600

約数和(自身を除く): 93473672

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 509, 1018, 2036, 2857, 3563, 4072, 5714, 7126, 11428, 14252, 19999, 22856, 28504, 39998, 79996, 159992, 1454213, 2908426, 5816852, 10179491, 11633704, 20358982, 40717964, 81435928]

約数ペア:

[(1, 81435928), (2, 40717964), (4, 20358982), (7, 11633704), (8, 10179491), (14, 5816852), (28, 2908426), (56, 1454213), (509, 159992), (1018, 79996), (2036, 39998), (2857, 28504), (3563, 22856), (4072, 19999), (5714, 14252), (7126, 11428)]