81452860

素因数分解:

$2^2\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{3083}}^1$

素因数の和:4413

約数の個数: 24

約数和(自身を含む): 171236016

約数和(自身を除く): 89783156

約数列:

[1, 2, 4, 5, 10, 20, 1321, 2642, 3083, 5284, 6166, 6605, 12332, 13210, 15415, 26420, 30830, 61660, 4072643, 8145286, 16290572, 20363215, 40726430, 81452860]

約数ペア:

[(1, 81452860), (2, 40726430), (4, 20363215), (5, 16290572), (10, 8145286), (20, 4072643), (1321, 61660), (2642, 30830), (3083, 26420), (5284, 15415), (6166, 13210), (6605, 12332)]