82456820

素因数分解:

$2^2\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{3121}}^1$

素因数の和:4451

約数の個数: 24

約数和(自身を含む): 173345928

約数和(自身を除く): 90889108

約数列:

[1, 2, 4, 5, 10, 20, 1321, 2642, 3121, 5284, 6242, 6605, 12484, 13210, 15605, 26420, 31210, 62420, 4122841, 8245682, 16491364, 20614205, 41228410, 82456820]

約数ペア:

[(1, 82456820), (2, 41228410), (4, 20614205), (5, 16491364), (10, 8245682), (20, 4122841), (1321, 62420), (2642, 31210), (3121, 26420), (5284, 15605), (6242, 13210), (6605, 12484)]