264515690

素因数分解:

$2^1\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{20521}}^1$

素因数の和:21817

約数の個数: 16

約数和(自身を含む): 476520840

約数和(自身を除く): 212005150

約数列:

[1, 2, 5, 10, 1289, 2578, 6445, 12890, 20521, 41042, 102605, 205210, 26451569, 52903138, 132257845, 264515690]

約数ペア:

[(1, 264515690), (2, 132257845), (5, 52903138), (10, 26451569), (1289, 205210), (2578, 102605), (6445, 41042), (12890, 20521)]